Red Sox shake up bullpen ahead of series finale

The Red Sox have been leaning on their bullpen hard all week long and Sunday the club brought in another fresh arm to help get them to the end of the homestand Prior to first pitch the club communicated that right-hander Zack Kelly has been called up to the big league club and that fellow right-hander Luis Guerrero has been optioned to Triple-A Guerrero had just come up on Saturday and pitched in the second encounter of the day s doubleheader but with the Red Sox in need of arms he went right back down following the competition Related Articles Red Sox lineups Struggling veteran gets day off in series finale MLB notes Red Sox appear to have struck gold with Carlos Narvaez Red Sox designate former Middleborough High star for assignment Red Sox lineups Marcelo Mayer to start at B in MLB debut Red Sox star infielder expected to miss considerable time with quad injury Kelly has appeared in seven MLB games this season allowing earned runs in innings The -year-old has struggled in Triple-A as well posting a ERA with walks in innings but Red Sox manager Alex Cora noted that he boasts great stuff and the challenge for him as unfailingly been consistency He s been ok I think where we re at we need to keep making moves to reset the bullpen it s been hard the whole week it started against Atlanta and it hasn t stopped Cora mentioned So having a fresh arm will help us Guerrero allowed one earned run in innings in Saturday night s - loss which was the first earned run he s allowed in career MLB appearances dating back to last September