Hurt his knee early last season and pitched through it. It didn't get better in the offseason. They are rehabbing now.
Crawford injured himself covering first base at Fenway Park on April 10 against the Orioles.
“My third start of the season, I covered first base and as soon as I hit the base, something happened,” Crawford said. “I just couldn't put a whole lot of weight on it. As you could tell, my velo was declining a little bit.”
Crawford was confident a full winter of rest and rehab would cure what ailed him, but he had a setback in the offseason.
“Yeah, it's something that I kind of dealt with last year, I just kind of flew through it,” said Crawford. “I did something [to it] this offseason. I had a couple hiccups within the rehab progression of it all. I’m just a little behind. The strength just isn't there where we want it to be. And, yeah, just a little behind, kind of taking it day by day.”