The Boston Red Sox activated right-hander Wade Miller from the disabled list on Sunday to start the second game of a doubleheader, and they also purchased the contract of righty Cla Meredith from Triple-A Pawtucket after just one appearance there.

Righty Blaine Neal was designated for assignment, and lefty Lenny DiNardo was optioned to Pawtucket.

Miller, who had not pitched since June because of a right shoulder strain, signed as a free agent during the offseason and has been in rehabilitation since then. He was 58-39 with a 3.87 ERA in his career, all with the Houston Astros.

Miller started the second game of Sunday’s doubleheader against the Seattle Mariners and broke Ichiro Suzuki’s bat on a groundout to first for the first out of the game. Miller was also clocked at 95 mph on a strikeout of Adrian Beltre to end the first inning.

Meredith, whose name is pronounced “Clay,” was a sixth-round choice in last year’s draft. He is 2-2 with 27 saves and a 0.76 ERA, with nine walks and 48 strikeouts in 47 2-3 innings over 2004-05, mostly at Single-A and Double-A.

Neal was 0-1 with a 9.00 ERA in eight appearances for the Red Sox this season. DiNardo worked 1 1-3 scoreless innings in two appearances with Boston.