The Indians centerfielder was placed on the disabled list on Aug. 9 with a non-baseball condition.
Cleveland Indians centerfielder Leonys Martin is in stable condition and receiving care at the Cleveland Clinic after contracting a life threatening bacterial infection.
Indians president of baseball operations Chris Antonetti said the team was "optimistic" at Martin making progress in his battle with the illness. "Thankfully, he's made a lot of progress in the last 24 to 36 hours," Antonetti said.
Cleveland had placed Martin on the disabled list on Aug. 9 with a non-baseball condition.
"Leonys has made considerable progress and is currently in stable condition. The medical team is optimistic that he will make a full recovery. But progress is expected to be slow." the Indians said in a statement. "The collective focus is to help Leonys return to full health and there have been no considerations regarding a timeline for his return to baseball activities."
Martin has played just six games with the Indians after they acquired him in a trade with the Tigers on July 31.
For the season he has a slash line of .255/.323/.425 and 11 home runs.
The 30-year-old is in his eighth season in MLB and has previously spent time with the Rangers, Mariners and Cubs before joining Detroit this past offseason.
Cleveland has a 67–51 record and a 12.5 game lead over the Minnesota Twins in the AL Central.