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Spring 2021

& Staff

2021 Season     Squad     2021 Season     Squad     2021 Season     Squad     2021 Season     Squad    

Zeus De La Paz


Ariel Mbumba


Soya Takahashi


Max Ornstil


Wal Fall


Tarek Morad


Matias Fissore


Saalih Muhammed


Jeremy Bokila


Lindo Mfeka


Jesus Enríquez


Joseph Nane


Tyler Blackwood


Akeem O'Connor-Ward


Travian Sousa


Tarn Weir


José Hernández


Joe Restani


Paul Blanchette


Emrah Klimenta


Danny Flores


Memo Diaz


Brian Brown


Brandon Allen


Javier Mariona


Kai Greene


Taylor Bailey


Johnny Rodriquez


Yohannes Harish


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2021     Technical Staff     2021     Technical Staff     2021     Technical Staff     2021     Technical Staff    

Technical director & Head Coach

Jordan Ferrell

A native of Stockton, California Jordan Ferrell was named Roots Technical Director ahead of the 2021 USL Season. Ferrell began as Roots First Assistant Coach in 2019 before taking over as Head Coach in 2020. Ferrell led the Roots to the NISA Fall Championship Final, finishing runner up in 2020. As a longtime high-level coach in Northern California, including as the Head Coach in the Sacramento Republic’s Academy and time with the University of Pacific, Ferrell can now focus on developing players and creating a consistent approach and style across all of the club’s technical efforts, from local youth club relationships to Project 51O to the Oakland Roots first team.

Chris Malenab Headshot

1st Assistant Coach

Chris Malenab

Christopher Malenab was born and raised in Sacramento, California, most recently serving as the lead assistant coach to USL Coach of the Year Ian Russel for Reno 1868 FC from 2018 - 2020. Before joining Reno 1868 FC, he spent 4 seasons (2014-2017) with the Sacramento Republic FC. During the 2014 Inaugural Season of the Sacramento Republic FC, Chris served as an assistant coach to Preki during their USL PRO Championship campaign. Then from 2015 - 2017 Chris served as Video Analyst for the Sacramento Republic FC under head coach Paul Buckle.

Malenab started his coaching career coaching and serving as technical director at various youth clubs in the greater Sacramento Area while coaching high school soccer. Along with his youth coaching experience Chris has served as an assistant coach at the college level, at Cosumnes River College (NJCAA), California State University Stanislaus (NCAA D2) and San Joaquin Delta College (NJCAA). He currently holds various coaching certificates including a USSF A-Senior License and NSCAA Director of Coaching Diploma. Chris received his bachelor's degree in sociology from California State University Sacramento.

Nana Attakora Headshot

2nd assistant coach

Nana Attakora

Nana Attakora was announced as a new Roots Assistant Coach ahead of the 2021 USL Season. Attakora retired from playing following the 2020 Season where he featured as Roots Captain. Attakora’s move into coaching comes after a stand out 15-year playing career that spans MLS, NASL, USL and NISA. In that time Attakora won the NASL Championship as Captain of the San Francisco Deltas and won three Canadian Championships with Toronto FC. Attakora retired having featured for the Canadian National team on 10 occasions. 

Noah Delgado Headshot

Assistant coach

Noah Delgado

Noah Delgado was born and raised in Fremont California and was captain of the Puerto Rican National team during his playing days. In a career that spanned more than 10 years, Delgado made stops playing in the USL for Portland Timbers, Syracuse Salty Dogs, Rochester Rhinos and 8 full seasons with the Puerto Rico Islanders. Since retiring from playing Delgado has jumped straight into coaching and is currently the Technical Director for Force North Soccer and a Coach with De Anza Force MLS Next Teams.

goalkeeping coach

Jeremy Clark

Jeremey Clark comes to Roots after extensive career coaching in the College game and most recently coaching Albion SC as the Head Coach of both the U16 and U19 MLS Next teams. Clark featured as a Goalkeeper and assistant Coach for UC San Diego after having spent time on the staff at Michigan State University, UC Santa Barbara and University of Evansville. From 2018-2019 Clark was the Academy Goalkeeping Coach for MLS Minnesota United FC. Prior to coaching Clark played and captained Michigan State University and played for several NPSL and USL League Two teams. Clark holds a USSF A License, a BA in Sociology and a MA in health service and administration. 

VP of Soccer

Eric Yamamoto

The former NCAA Champion and All-American recently finished his 29th season as a coach for his alma mater, Santa Clara University. He has deep Bay Area ties at all levels of soccer, including experience developing youth players for the US Soccer Development Academy De Anza Force.

Director of performance

Ben Stadler

Bringing an intersecting skillset as an ex-player, coach, human performance coach, and rehab specialist, Stadler started his relationship with soccer as a Goalkeeper, playing in the US and Germany. Stadler brings 8 years of experience as a strength and conditioning coach within the private sector as well as scholastic levels (college prep and collegiate environments).  Stadler specializes in returning athletes to professional sport, with clients who have spanned the top tiers in the USA, Europe, Canada and South America. As human performance coach he won the 2017 NASL Championship with the SF Deltas and has coached competitive club, and collegiate soccer as a goalkeeper coach, assistant coach and human performance coach. 

Director of Team Operations

Valentin Saldaña Jr

Valentin Saldaña, a native of Richmond, CA is entering his third season as a part of the Technical Staff. In this role, he manages all the logistical and administrative aspects for the first team. Saldaña is a graduate of nearby St. Mary’s College where he earned his BA in Business Administration and finished his MA in Sport Management in May 2020.

Team Operations Manager

Berdi Merdanov

Berdi Merdanov is originally from Ashgabat, Turkmenistan. Prior to his arrival in the United States, he was playing in the 1st Division as an academy graduate and was able to experience a professional environment early on. Merdanov then moved to the US and began playing with the DeAnza Force Academy. Following his time in the academy, Merdanov joined Holy Names University in Oakland where he played for 4 years. While playing for Holy Names, Merdanov also played for SF City F.C. of USL League 2. Following his Graduation, Merdanov served as an Assistant Coach at Holy Names and for SF City F.C.

Athletic Trainer

Crystal Lee

Crystal Lee is a Certified Athletic Trainer at UCSF Benioff Children's Hospital Oakland. Having been with the Roots since 2019, Lee is A graduate of San Diego State University and San Jose State University, actively practicing as an ATC, along with a Corrective Exercise Specialist certification. 

Head Team Physician

Kevin M. Roth MD

A native of Moraga, California, Dr. Roth is a sports medicine doctor at Muir Orthopaedic Specialists and completed his undergraduate degree at the University of California, Los Angeles. He received his medical degree from the UCLA School of Medicine, where he was inducted into the Alpha Omega Alpha Honor Medical Society. Dr. Roth was an assistant team physician for many of the professional teams in Los Angeles including the Lakers, Sparks, Dodgers, Angels, Kings, and Ducks.

Massage Therapist

Betsy Abel

Betsy began working in 2006 as the Sports Massage Therapist for the Saint Mary’s College Men's Rugby team where she continues to work today. Through her certifications as a Sports Massage Therapist and Strength and Conditioning Specialist, she has worked with NBA coaches, NFL players, Pro Rugby players, Pro Triathletes, Ultimate Frisbee players, Rowers, Cyclists, Ultra Runners, Elite Volleyball Players and Olympians.

In July 2018, Betsy served as the Head Sports Massage Therapist for the Rugby World Cup 7's tournament in San Francisco, California. She also worked as a sports massage therapist at the Las Vegas 7’s Tournament in 2019. Betsy holds a BA in Kinesiology and Exercise Science and a MA Human Performance and Sports Studies.  

Mental Health & Sport Performance Specialist

Lisa Bonta Sumii, LCSW, CSW

Lisa began working as a psychotherapist in 1996 and has been a private practice clinician for over 15 years, where she continues to work today. As a Licensed Clinical Social Worker, she has specialized in working with individuals and couples in areas of: ethnic/racial identity; healing from interpersonal trauma and community violence; prioritizing mental health; and developing healthy family and community relationships. Working from a social justice and equity lense are key tenets of her approach. In recent years, Lisa has integrated a formal mental sport performance component to her practice. She has worked with elite student athletes, at the high school and collegiate level in the following sports- Soccer, Softball, Track and Field, Ultimate Frisbee, and Tennis. Lisa has also worked with Olympic hopefuls and professional athletes across sports, including Soccer, Football, Golf, Weight Lifting, and Softball.

Lisa is a professional member of the Alliance for Social Workers in Sport, the Association for Applied Sport Psychology, and the National Association for Social Workers. She is listed in the United States Olympic & Paralympic Committee Mental Health Registry. Lisa holds a Master's in Clinical Social Work from Smith College School for Social Work.