The Red Sox optioned pitcher Justin Masterson to Triple-A on Monday with plans convert him into relief pitcher, according to The Associated Press. Boston will recall Clay Buchholz and place him back in the starting rotation, taking Masterson's place. "We think getting Justin acclimated to the bullpen has a chance to really help our ball club," Manager Terry Francona said. "There's a couple of ways to do it. You could just give him the ball and send him out there. I don't think that's the best way to develop somebody to pitch meaningful innings. So we sat him down and talked about it."