The Cardinals optioned Graceffo to Triple-A Memphis on Friday.
Graceffo has managed a 3.35 ERA and 1.12 WHIP out of the St. Louis bullpen this season but an 18:19 K:BB over 40.1 innings suggests rocky days could be ahead. He's being sent out in order to make space on the roster for the return of Ryne Stanek from paternity leave.