Tribe manager Manny Acta does not believe a stint on the disabled list will be necessary.
"We're not expecting that," Acta said prior to Wednesday's game against the Royals. "But, hey, we've seen cases like that in the past. Our medical staff feels that it's just a mild tightness and he's much better today. They don't see it that way. He didn't pull it."
With Choo sidelined, the Indians gave backup outfielder Aaron Cunningham the nod in right field for Wednesday's game at Progressive Field. Under the circumstances, super utility man Jason Donald -- primarily an infielder -- would step into the role of fourth outfielder.
Through 15 games this season, Choo has hit .237 with no home runs, five doubles and nine RBIs.
Acta noted that Cleveland had no plans to promote recently signed outfielder Johnny Damon, who is currently training at the team's complex in Goodyear, Ariz. Damon was signed on April 17 and is expected to play in Minor League games prior to transitioning to the Major League team.
"We're going to make sure that Johnny is right physically," Acta said.
Acta indicated that Choo tweaked his left hamstring while running to second base on a grounder hit by Carlos Santana in the sixth inning of Tuesday's 4-3 win over the Royals. The Tribe's medical staff also noticed that Choo did not run as hard as he normally might on a play in the outfield.
"We could tell that he went kind of slow after a ball ... hit to right-center field," Acta said. "So we were approached by the training staff and we talked to him and he just felt it was sore. If it was up to him, he probably would've stayed out there."
The Indians are not sure when Choo will be ready to rejoin the lineup.
"We don't have a timetable. It's day to day," Acta said. "Our medical staff feels that it's probably just a couple of days. He showed up today feeling a lot better than we were anticipating."