Atlanta Braves catcher Sean Murphy has a cracked rib and is expected to miss four to six weeks, the team said on Monday. The injury gives top prospect Drake Baldwin the chance to start the season as the starting catcher.

Atlanta Braves catcher Sean Murphy has suffered a fractured left rib that will sideline him for at least the next month, according to MLB.com. Murphy, in turn, will be unavailable when the Braves open their schedule on March 27 against the San Diego Padres.

With Braves catcher Sean Murphy expected to miss at least a month with a cracked rib, top prospect Drake Baldwin seems poised to open the season as Atlanta’s starting catcher. Murphy was injured when hit by a pitch Friday.