Will Middlebrooks will miss his second straight game with a strained left hamstring, but the Red Sox aren't ready to put him on the DL yet.
Aaron Cook will start the series finale between the Red Sox and Mariners on Wednesday, with Franklin Morales available out of the pen. Morales' start is moved to Saturday.
The Red Sox called up Mauro Gomez after placing Daisuke Matsuzaka on the DL Tuesday. Gomez has been hitting well in Triple-A Pawtucket.
Red Sox pitcher Daisuke Matsuzaka, who came out of the game Monday night in Oakland in the second inning with a stiff neck, will be placed on the 15-day disabled list, the Boston Globe reports.
The ex-White Sox reliever, signed in 2011 as a potential replacement for Jonathan Papelbon, suffered through 1 12 injury-filled seasons before reaching agreement on a buyout of his contract.