The Boston Red Sox have made six roster moves, including sending pitcher Joe Kelly to Triple-A Pawtucket and putting Dustin Pedroia on the disabled list.

Pedroia goes on the DL with a hamstring strain. Pawsox infielder Deven Marrero gets the call up.

The struggling Kelly is demoted and relief pitcher Jonathan Aro gets a call up to Boston. Justin Masterson will start Sunday's game in place of Kelly.

Outfielder Jackie  Bradley Jr is also back in Boston. The Sox designated newly acquired catcher Erik Kratz for assignment.