Before the Red Sox face off against the Philadelphia Phillies on Tuesday, they've maximized their roster once more before first pitch.

Boston has activated catcher Blake Swihart from the DL, designating veteran catcher Dan Butler for assignment in the corresponding move.

Swihart, 26,  has been sidelined since Aug. 2 with left hamgstring tightness. He was placed on the 10-day disabled list the next day, and luckily only missed those required 10 days. Swihart played in one rehab game this past Sunday for the Lowell Spinners, the short-season Single-A affiliate of the big club.

Swihart will come back to his orginal spot as the backup catcher to  Sandy Leon. During the 10-day stint, Dan Butler took over the backup duties, starting in two games. Swihart has hit .226 this season with one home run and six RBI, playing in 51 total games after the Hanley Ramirez roster crunch opened his season in controversy.

Butler, 31, has been a veteran in the minor league system. In the next seven days, we will find out if Boston has either traded, released, or demoted Butler. His 40-man roster spot has evaporated.