How might Braves replace Medlen?

Pitcher Kris Medlen will be re-evaluated on Monday after having to leave his Sunday outing against the New York Mets in the fourth inning due to a strained right forearm. While manager Fredi Gonzalez says he's keeping his fingers crossed that everything will be OK, one can't help but wonder what the Atlanta Braves might do if Medlen were forced to miss a significant part of the 2014 season.