Mazur reported discomfort in his right elbow Friday and will see a specialist after getting imaging done, Craig Mish of FanDuel Sports Network Florida reports.
It's bad news for Mazur, who's pushing for a spot on the Marlins' Opening Day roster. The 25-year-old posted a 4.80 ERA and a 1.50 WHIP across 30 big-league innings last season for Miami and hasn't allowed a run in three innings of action during spring training. More information regarding Mazur's health should be available in the coming days.