Josh Reddick was optioned to Triple A Pawtucket to make room on the roster for John Lackey.
With the bullpen getting heavy use the last two days, the Red Sox did not want to lose a pitcher.
When Marco Scutaro returns Tuesday from the disabled list, a pitcher will be dropped.
Clay Buchholz was pushed back to Friday in Toronto out of concern for his sore back. Tim Wakefield will start on Wednesday in New York.