No — there is no reliable public source that currently confirms Jesse Marsch is left-handed.

Jesse Marsch is an American professional soccer coach and former player. He is widely recognized for his coaching stints in Major League Soccer (MLS) with teams like the New York Red Bulls, as well as in European leagues with clubs such as Red Bull Salzburg, RB Leipzig, and Leeds United.

During his playing career, Marsch was a midfielder, spending the majority of his professional career in MLS. He played for D.C. United, Chicago Fire, and Chivas USA, winning multiple domestic trophies including MLS Cups with D.C. United and Chicago Fire.

Marsch began his coaching career as an assistant for the U.S. men's national team before taking on head coaching roles. He gained significant attention for his high-pressing, aggressive style of play, often associated with the Red Bull football philosophy.

His coaching success includes winning the Austrian Bundesliga twice with Red Bull Salzburg. He became one of the few American coaches to manage in top European leagues, marking a significant milestone for U.S. soccer.