Indians trainer Lonnie Soloff said Tuesday that surgery is among the options the team is exploring for Hafner, who was placed on the 15-day disabled list Monday. He is wearing a walking boot after an MRI showed a strained tendon in the bottom of the foot.
Soloff said a decision would be made in the next two days. The Indians entered Tuesday's doubleheader against Seattle tied for second in the AL Central with the White Sox, 5½ games behind Detroit.
Hafner has been playing with pain since injuring the foot on a slide in April. He aggravated the injury running the bases Sunday against Detroit after getting a single, a hit that broke an 0-for-16 slump.
Hafner is hitting .281 with 11 homers and 49 RBIs in 82 games.