Farrell made the announcement after Saturday's 3-2 loss, although he did not say whether Drew would start or be ready to go off the bench. Drew had undergone a more intense series of tests earlier in the day as he attempts to come back from a strained oblique and avoid the disabled list.
Farrell indicated before the game that if Drew had passed through the tests, which included full batting practice and some infield work, then he would have been available off the bench Saturday. Drew never appeared, but might be in the mix versus Indians right-hander Corey Kluber on Sunday.
Drew signed in May and went through a stint in the minors before playing four games for the Red Sox prior to the injury. He has never dealt with an oblique strain, he said, so precaution is at a premium.
"To start with, [the pain] wasn't tolerable," Drew said amid the workout Saturday. "These extra days and stuff ... obviously, of course, I can swing the bat and stuff like that more. Like I said, just working through things, trying to get at game speed and go from there."
Drew was ramping up his activity when he felt some pain in the side Wednesday in Baltimore. That prompted a down day Thursday. He was expected to get in more activity Friday, but heavy rain delayed the full workout for a day.
"Taking more swings day by day, that's a good thing," he added. "Take it slow, have to do some more things to make it game speed-like and go from there."