Red Sox lineups: Marcelo Mayer to start at 3B in MLB debut

Marcelo Mayer has officially arrived The top Red Sox prospect will start at third base and bat sixth for the Red Sox when he makes his major league debut in the second contest of Saturday s doubleheader against the Baltimore Orioles Lucas Giolito - will take the mound for the Red Sox against Orioles left-hander Trevor Rogers season debut Related Articles Red Sox rookie batting cleanup in first event of doubleheader Red Sox competition postponed rescheduled for Saturday as part of doubleheader Red Sox lose Alex Bregman to injury while annihilating Orioles - Red Sox B Alex Bregman leaves championship with right quad tightness Alex Cora reacts to Red Sox s up-to-date pact for first baseman Mayer was selected No overall in the MLB Draft and has ranked as one of Boston s the bulk highly touted young players ever since He presently ranks as the No prospect in MLB according to Baseball America and is Boston s No prospect behind outfielder Roman Anthony the consensus top prospect in the sport Mayer becomes the second of Boston s Big Three prospects to reach the majors this season joining fellow infielder Kristian Campbell who made the club out of spring training and will be batting cleanup for the Red Sox on Saturday evening Red Sox lineup Jarren Duran LF Rafael Devers DH Rob Refsnyder RF Kristian Campbell B Trevor Story SS Marcelo Mayer B Nick Sogard B Connor Wong C Ceddanne Rafaela CF Lucas Giolito P How to watch When p m Where Fenway Park Boston Broadcast info NESN WEEI FM WCCM AM Spanish WESX AM Spanish