Ondrej Mazuch is teenage Czech football player who currently features for the Italian Serie A club Fiorentina. He plays as a centre-back.
Ondrej Mazuch started his professional club football at Czech giants FC Brno in 2006 and scored 1 goal in 24 league matches in the 2006-2007. After just one first team season, Mazuch was signed by Italian club Fiorentina in the summer of 2007. He is expected to be an important player for Fiorentina in the 2008-2009 season.