Ozzie Guillen liked what he saw of Josh Johnson on Wednesday when the ace of the Marlins stepped up on a bullpen mound and threw his 35-pitch allotment.

But Guillen said more important than how Johnson looked on Wednesday is how the pitcher's right arm and shoulder feels after he wakes up on Thursday.

"I only care about J.J. after he pitches, how he's going to feel [Thursday],'' Guillen said after Marlins pitchers and catchers completed their first workout of spring training. "We have to track every day how he feels – not to babysit him, but to make sure how he feels the next day."