The Boston Red Sox announced a change at the back end of their bullpen Tuesday, calling up lefty Robby Scott from Triple-A Pawtucket.



Meanwhile, the Red Sox will be sending down righty Justin Haley to the PawSox to make room for him on the roster.



Scott first debuted for the Red Sox in 2016 and went on to appear in 57 games in 2017, going 2-1 with a 3.79 ERA. He's spent the 2018 season down in Triple-A so far, posting a 1.48 ERA in 24 appearances.



Scott is especially effective against lefties. In 2017, opposing left-handed hitter posted just a .121 batting average against him with an OPS of .527.



Haley, meanwhile, will be heading back to Pawtucket after a short stint in the majors. Haley was called up on June 8 and appeared in one game, throwing two scoreless innings.





