The Chicago Cubs will play top prospect Kris Bryant in left field on Thursday.
Bryant has played third base and was the designated hitter while limited because of fatigue in his right shoulder in Cactus League games this spring.
"My biggest concern, always, with infielders going to the outfield and vice-versa is arm -- that you would hurt your arm because you would chose to use different arm stroke," Joe Maddon said.
Bryant has made a case to make Chicago's Opening Day roster. He has nine home runs this spring.