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Coaching Staff


Coach Biography Title License     High School Coaching Email
Dani Cappelletti Coach G10, G07 USSF "D"
Laguna Hills Boys
FS Coach
Dani's Email
Roger Castle, Jr.
Roger C Jr's Bio
Director of Coaching,
Coach B04, B02
Mission Viejo Boys
Varsity Asst. Coach
Roger C Jr's Email
Roger Castle, Sr.
Roger C Sr.'s Bio
Director of Operations,
Coach B02
Mission Viejo Boys
Varsity Head Coach
Roger C Sr's Email
Bryan Chavez Coach B11, B06 USSF "E"
Laguna Hills Boys
JV Coach
Bryan's Email
Dave Stansfield
David's Bio
Coach B09, B07 USSF "B"
David's Email
Jimmy Turner
Jimmy's Bio
Coach G08, B08 USSF "E"
Laguna Hills Boys
Varsity Asst. Coach
Jimmy's Email
Josh Smith
Josh's Bio
Youth Academy,
Coach B10-B12
Josh's Email
Leon Zavalkov
Leon's Bio
Girls Director, Coach B03
Laguna Hills Boys
Varsity Head Coach
Leon's Email
Jason Sorrell
Jason's Bio
Coach B00 USSF "D"
Capistrano Valley
Varsity Head Coach
Jason's Email
Nikki Dunn
Nikki's Bio
Coach G11, G09
El Toro Girls
Varsity Head Coach
Nikki's Email
Colin Smith
Colin's Bio
Coach B03, B02, Goalkeeper Trainer
Mission Viejo Boys
Colin's Email


Born in Southern England, Roger Snr played for some of the best English coaches of his era. As a youth player, he played under Jim Ryan, Academy Director at Manchester United who has produced many great players.

On moving to the States he started coaching and was appointed the Director of Development at the Mission Viejo Soccer Club when the club was a powerhouse. He then accepted a position Head Boys Coach at Mission Viejo High School, building the Diablos into a Nationally ranked school within five years. He took a position as a coach with Irvine Strikers and won State Cup. He started his own club SC Athletic, who entered the SCDSL and then to strengthen the clubs position Nationally he rekindled his old alliance with the Strikers FC..

Roger has a strong network of College and USSF connections to assist players moving forward beyond Club and High School soccer. He also has contacts in his Native England and regularly takes teams to Manchester to compete. He has developed youth players and assisted in placements to Indiana, UCI, UCSB, USF, Sonoma State, Vanguard University, West Point, St. Mary's, and CS Northridge.

Coaching Background:

Over 30 years coaching experience from youth to adult in the U.S.

  • President & Director of Operations OC Surf Mission Viejo

  • President & DOC Strikers FCMV

  • Coach, BU16-19 Teams, SC Athletic

  • President SC United

  • Coach, Older Boys Teams, SC United

  • Head Coach Mission Viejo High School

  • CIF SS – D1 Advisory Board, Boys

  • State ODP staff BU16

  • Boys coach, Irvine Strikers

    • State Champions

  • Director of Development, MVSC

    • State & Regional Champions

  • USSF Nat'l boys U16 - U19 player scout

Credentials and Accomplishments:

  • National D license
  • Coerver Licensed 2005-2010
  • Club Level:
    • State Championships
    • CSL League, League Cup & Tournament titles
  • Mission Viejo High School:
    • League Playoffs 9 of 13 seasons
    • 3 times South Coast League Champion
    • 1 time Sea View League Champion
    • League MVP three times
    • Twice All American Western Regional team
    • Nationally Ranked #4

Personal Details:

Roger is full time Director of Operations/President of OC Surf Mission Viejo having retired from the Oil and Gas industry. He resides in Mission Viejo with his wife of 35 years Cecilia, has two children Roger Jr. and Joanna, and has three granddaughters.


Roger Castle, Jr. has a strong background in playing and coaching, both in Southern California and in England. He began his career as a youth player at Mission Viejo Soccer Club. His High School experience was at RSM High School. Upon graduation, he was accepted into the PACE program at the Dover Football Club in England. While there, he earned his Levels 1 & 2 Coaching Badges.

Roger Jr. is truly a "players' coach." He forges strong relationships with his players and is always a advocate for their development and advancement. Based upon his own experiences in youth and Club soccer, he has a good understanding of the challenges facing today's youth soccer players, and can use that to good advantage when coaching.

Coaching Background:

Roger Jr. has coached both boys and girls at the Club level, and boys at
Mission Viejo High School.
    • Vice President, SC Athletic
    • Coach, SC Athletic Boys and Girls
    • Director of Coaching, Saddleback Valley SA
    • SC United Soccer Club, Boys Coach
    • SC United SC, Girls Development Program
    • JV & Frosh/Soph Coach, MVHS
    • Varsity Assistant Coach, MVHS
    • Coach, Coerver Coaching camps
    • Skills development sessions, Coerver Coaching

Credentials and Accomplishments:

    • Level 1 & 2 Coaching Badge, England
         – Endorsements in Sports Injuries
    • USSF "B" National License
    • CSL, SCDSL League and Tournament Titles

Personal Details:

Roger Jr. lives in Costa Mesa, CA. He still plays in a local league with some of his former club and high school friends.


Throughout his career as a sports coach, sports development officer and educator, David has gained vast amounts of applied and theoretical knowledge and experiences working with youth from an assortment of backgrounds, cultures and social standings. He has worked with various leading football clubs and education organizations in England and US, including Tranmere Rovers, Manchester United, The Football Association, Mid Cheshire College, Manchester Sports Development, FC United of Manchester, Oldham Athletic in the Community, Challenger Sports, Broomfield Soccer Club and The Manchester College thus demonstrating the ability to quality assure the delivery of sessions linked to the personal development of young people, including education, football coaching, and training. David also has experience in management and mentor roles, most notably with The FA and Mid Cheshire College.


Bolton University; Post-Graduate Diploma in Education- Teaching in the Lifelong Learning Sector

Edge Hill University; Bachelor of Science First Class Full Honours Degree in Coaching and Performance Development

The Manchester College; Foundation Degree in Sports Coaching (Distinction)

Coaching Credentials & Accomplishments

  • FA Coaching in Football level 3 UEFA B Award
  • FA Coaching in Football level 2 Award
  • FA Coaching in Football level 1 Award
  • USSF National "B" Lisence
  • Mentoring Young Leaders FA  Award
    FA Level 3 Youth Award Module 2- Developing the Practice
    FA Level 3 Youth Award Module 3- Developing the Player
    FA Coaching Disabled Footballers
    FA Introduction to Futsal
    First Aid in Football
    Safeguarding Children Award
    FA Emergency First Aid
  • Mentoring Adults FA Award
  • FA Level 3 Youth Award Module 1- Developing the Environment


Jimmy Turner

Jimmy Turner is the skills coach for OC Surf Mission Viejo. He is also formerly an Orange County Blues player, Midfielder/Defender on the UCI Men's Soccer Team, and currently a coach at Mission Viejo High School.

Jimmy grew up in Mission Viejo, CA and his playing experience includes youth, Club, High School Soccer, USL and PDL teams. He has played for three local clubs and was team captain at two of those. He won the National Cup with another team, Barcelona FC.

At Mission Viejo High School, Jimmy was honored for both his athletics and academics. He received the Diablo of the Year Award 2007, Athletic Scholar MVHS 2005-2006, and Spirit of the Diablos Award for academics from 2004-2006. He was Team Captain at MVHS from 2006-2008.

Jimmy Turner's Wikipedia Page


Accomplishments & Coaching:

           • Coach, OC Surf Mission Viejo 
           • Defender for Orange County Blues FC
           • Skills Coach, Strikers FC MV 
           • Skills Coach, SC Athletic
           • Mission Viejo HS Staff Coach 
           • 2007 South Coast League MVP at MVHS
           • 2007 Diablo of the Year Award
           • Twice All South-Coast League
           • Twice MVHS Team Captain
           • National Cup winner with Barcelona FC


Jimmy is a graduate of the University of California, Irvine with a degree in History with an Education minor.


Leon Zavalkov's playing experience began in Odessa, Ukraine where he played youth soccer at the Chernomorets Youth Soccer Academy. He progressed in 1985 to the Chernomorets Premiere Division reserve team, and in 1990 came to the United States where he joined the Hewlett-Lawrence Soccer Club in New York.

Leon began coaching in Orange County for the OC Kings under Thomas Dooley guidance where he was the Boys U9 Coach 2006-2007 season, and Boys U13 Coach 2007-2008 season. In December of 2008 he moved to Strikers FC-MV, where he continues coaching older boys.

Leon's love of the game and of coaching is apparent in his coaching style. He brings his international playing and coaching experience to the field and loves to give on-the-spot training and advice. Leon is very straightforward with high expectations for his players, but earns their respect through his dedication and passion.

Coaching Background:


  • Laguna Hills High School Boys Varsity Coach/ Program Director
    2017 - present
  • Mission Viejo High School Boys Coach
    FS and JV teams
    2014 - 2017
  • OC Surf Mission Viejo Coach Boys 2003, Girls Director - present
  • SC Athletic Coach
    Boys U14 & U19
    2011 - 2012
  • SC United Coach, BU14, BU19
    2008 - 2011
  • OC Kings Coach, BU9, BU13
    2006 - 2008
  • USSF National "C" license
  • National High School Coaching Diploma




Playing Background:

From the age of 8 Jason fell in love with the game of soccer. He represented his town (Reading) and his county (Berkshire) from 1980-1986, and the South of England from 1986-1988. Jason signed with Oxford United Football Club (a professional club in what was then the English 2nd Division) from 1986-1988. After coming to the U.S, he played in the semi-professional circuit, until he dedicated himself to full time coaching.

Coaching Background:

Throughout his 20+ years coaching, Jason has coached many age groups for Region 84 AYSO youth and EPP teams and various club teams (both boys and girls) at various ages (Newport United, Irvine Strikers, Irvine Lasers, Wolfpack, and currently Strikers MV).

Jason has coached at various high schools (Newport Harbor High School boys varsity assistant 1988-89, Corona Del Mar High School boys JV and varsity assistant-1992-93; Newport Harbor High School girls varsity 1996-2002; Mater Dei boys varsity assistant 2005-2006; Capistrano Valley High School boys varsity 2010-present; CIF Finals 2010 and 2011).

Coach Sorrell also has been the assistant coach at Chapman University women’s soccer from 2000-2001.

Personal Details:

  • Teaching in the Capistrano Valley Unified School District for nine years and is currently a teacher at Capistrano Valley High School.
  • BA in English and MA in Education.
  • USSF National D license.


Nikki Dunn is a new coach at the Strikers FC-MV for the G09 team. Nikki is also currently the Girls Assistant Varsity Coach at El Toro High School. 
Nikki is a local from Lake Forest who played at El Toro High School. Her playing career includes youth, Club, High School Soccer, College, and WPSL. Her High School Soccer career included 2 years on Varsity including being a captain her senior year. 
Nikki went on to play at Vanguard University(VU) for 4 seasons from 2014-2017. In the 2017 season the team went undefeated in conference play and in the tournament. The Vanguard Women’s Soccer Team ended ranking 8th in the nation for the NAIA Coaches’ Poll. Nikki also played for the Strikers WPSL team for their 2017 season.

VU GSAC Champions 2014, 2016, & 2017
VU GSAC Tournament Champions 2016 & 2017
Recognized as All-conference player 2017
Coaching experience
Assistant Varsity Coach at Trabuco Hills High School: Fall 2014 — Spring 2016
Assistant Varsity Coach at El Toro High School: Fall 2017 — present
National USSF “E” Coaching License 


Colin Smith is a New B02 Coach as well as Goalkeeper Trainer with OC Surf Mission Viejo.  Former Strikers FC-MV Goalkeeper, Colin played 3 years Varsity at Mission Viejo HS and was team Captain and starting Goalkeeper in his senior year. After HS, Colin played at CSU Dominguez Hills NCAA D2 for 2 seasons. During this time, CSUDH were 2015 CCAA regular season Champions and tournament Semi-finalists, and finalists in NCAA D2 Western Region Championship, ranked 5th in the Nation.

    ▪    National HS Coaching License
    ▪    USSF "D" License
    ▪    MVHS Diablo of the Year award in 2014
    ▪    2 Professional trials in England with Stevenage FC and Colchester United
    ▪    NSCAA Level 1 and 2 Goalkeeper Coach License


Nick Shackelford grew up in Orange, California, where he played for the Irvine Strikers Academy, part of the US Soccer Development Academy. As a Junior at Villa Park High School, he committed to UC Berkeley. He later transferred to St. Louis University where he started in each of his final three years.

During the summers, he played with the Orange Country Blue Stars of the USL Professional Development League (PDL). During the summer going into his senior year he had the opportunity to train with Sporting KC.

A stand-out goalkeeper at SLU, a historically incredibly successful program, Nick ended his career ranking third all-time in wins (39) and eighth in career GAA (0.92). For the love of the game and a desire to make a career of soccer, Nick passed on a job with an advertising firm in St. Louis following graduation. He was not ready to hang up his gloves and boots.

Nick was always a Galaxy fan, and when the opportunity to play for them arose, he jumped at the chance to play near home and with the Galaxy organization.