The Boston Red Sox have put Andrew Benintendi on the disabled list with a left knee sprain.
Benintendi was injured on Wednesday night against the Tampa Bay Rays while trying to avoid a tag while running toward second base.
John Farrell said team doctors were evaluating the results of an MRI exam on Thursday. The team later said that tests were inconclusive, with more to follow Friday.
The Red Sox are hopeful that the rookie will return before the season ends.