Coaching staff

David Bosak


Born of immigrant parents, David played three years and captained at Marcellus High School where he was named first team All state and first team all CNY two years in a row. His senior season, David was named 2018 All CNY Player of The Year. He then spent his freshman year at Onondaga Community college where he was named First team all conference and first team all region for the 2019 season. David started this club so he could freely implement his own style of coaching in an effort to give back to the community and most importantly to develop the next generation of soccer players in central New York.

John Schoonmaker


Born and raised in Marcellus, NY Jonathan has developed his playing and coaching careers within the CNY communities. He played 4 years of varsity at Marcellus from 2005-2009 and helped secure 2 sectional titles and a state final in that time, being named to the first team all league in his senior year. Jonathan now holds a professional coaching license in the state of NY and a national level USSF “D” license. He has coached in different clubs and with different age groups for the past 8 years. His coaching philosophy is based on the Dutch “total football” mentality, meaning players are trained to be intelligent and technically diverse with the ability to play anywhere at any time. He currently is the assistant varsity coach at Marcellus HS.

Victor Stasyuk Jr.

Born of immigrant parents from Ukraine, Victor played 3 years of varsity soccer at Marcellus high school scoring dn assisting as an attacking midfielder. He then continued his education at Onondaga Community College where he captained and played 2 years before furthering his playing career at SUNY Cortland. Victor is eager to work to give back to his community and grow the future generation of players in central New York. He is passionate about what he does and enjoys helping kids reach for their dreams.

Mark Sunheimer 


Mark Sunheimer has 20 years of coaching experience, most notably as the Marcellus Boys Varsity Coach for the past 10. He started his coaching career at 18 in the West Genesee school district coaching camps, helping on summer teams, and doing Saturday morning Micro soccer for U5 and U6. After college, Mark Sunheimer coached U10, U12, and U13 at a player development club and was the assistant Varsity coach for West Genesee. Since coming to Marcellus in the fall of 2007 he has coached Modified and JV before being named the Varsity coach in 2010. He currently holds a USSF D licence, NYS coaching licence, and CPR/AED certification. Coach Sunheimer is excited to be back at the grassroots level getting players excited about playing the beautiful game.