The surgery was performed on Donnelly's right elbow in August, and he had been working with trainers in Tempe, Ariz.
"It's nice to be in a clubhouse," he said, "as opposed to a rehab."
But Donnelly, signed to a Minor League deal by the Tribe last month, still has quite a bit of rehab ahead of him. He will remain in Winter Haven for extended Spring Training and is projected to throw his first bullpen session in mid-April.
The Indians' goal is to have Donnelly pitching in games at some level by Aug. 1. So if he is going to help the Indians' bullpen, it won't be until the home stretch of the season.
If Donnelly is healthy, there is reason to believe he can help. In 303 career appearances, he is 25-9 with a 2.88 ERA. His best season was 2003, when he went 2-2 with a 1.58 ERA in 63 games for the Angels.
But Donnelly spent the last few years pitching in pain. He injured his elbow in 2004. He was trying to make a hurried comeback from a fractured nose suffered when a ball struck him during batting practice in Spring Training, and the arm began bothering him.
"Over the last couple years, there were some ups and downs," Donnelly said. "There were some minor problems in the area. I just battled through it to stay on the field. Last year, it came to an end. I got up one night in the bullpen against the Rockies, and that was it. The pain started firing, and I couldn't throw the ball anymore, so it was time."
Donnelly didn't want to take the time to address his name being mentioned in the Mitchell Report. In the Report, former Mets clubhouse employee Kirk Radomski claims Donnelly asked for Anavar and was supplied with Deca-Durabolin in 2004. Anavar and Deca-Durabolin are forms of anabolic steroids.
In a statement to ESPN.com in December, Donnelly admitted that he asked about Anavar but said he was no longer interested in it, once he discovered it is a steroid. He did not wish to elaborate any further.
"My statement remains the same," he said. "My statement was true as it could be."