Baker, who is on the disabled list with right elbow tendinitis, gave up a single, a double and then induced a popup before he was removed from the game after just 11 pitches. Baker was scheduled to throw 75 pitches for the Miracle in Port Charlotte, Fla.
"Baker just didn't feel right tonight," Twins general manager Terry Ryan said in a statement released by the team. "He couldn't seem to get loose on the mound, and instead of pushing the envelope, we decided we would go get him out of the game. We will evaluate him again tomorrow."
Twins manager Ron Gardenhire indicated earlier in the day that Baker likely needed multiple rehab starts before he was to be ready to rejoin the Twins.
"He's behind," Gardenhire said. "We're not going to push him. He's got to throw the ball. He didn't throw the ball when we were down there. We have to get reports the ball is coming out of his hand. He was throwing 84-88 mph, and he's got to throw the ball. He was kind of on cruise control trying not to hurt himself, but now he has to let it fly."
Gardenhire sounded more optimistic about a quick return for right-hander Jason Marquis, who was optioned to Double-A New Britain upon returning from New York where he was tending to his 7-year-old daughter, Reese, who was seriously injured in a bicycle accident.
Marquis was away for two weeks, and threw 54 pitches in a Minor League game on Tuesday. He's scheduled to start again on Saturday, and might need just one more start after that before he's ready to rejoin the rotation.
"We liked the way Marquis came back the other day," Gardenhire said. "He obviously did some work at home with his tough situation. He actually still had life on the ball after we took him at 54 pitches. We like that a lot. He'll go quick."