But after X-rays revealed no structural damage and Baker was given an extra day off, he is tracking toward being available for the majority of the Rangers' four-game series with the Twins.
"He got treatment today. His mobility is better, but I'm looking for him to be available tomorrow," manager Ron Washington said.
Minnesota left-hander Scott Diamond is slated to start Friday, making it a likely night for Baker to return.
Baker's injury came on a dazzling sliding catch near the left field wall in the first inning Tuesday at Angels Stadium. Baker had to the leave the game early as his knee quickly became swollen.
Two days later, Washington isn't ruling out the possibility of using Baker as a pinch-hitter Thursday.
"He might be a little secret weapon tonight off the bench; one swing of the bat," Washington said.
Nate Sandell is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.