"Physically, I feel great, and right now I'm pretty much able to do everything that the training staff has set aside for me," Tazawa said through interpreter Masa Hoshino.
Of course, Tazawa hasn't been asked to do anything overly strenuous just yet.
"No, it doesn't include throwing a ball. Right now, we're just focusing on range of motion, so I think any talk about throwing a ball is going to be later," said Tazawa.
The biggest thing Tazawa is trying to overcome these days is the monotony.
"I think right now even small changes in my rehab program are really welcome, because it's something new that I can look forward to and they're a good change of pace mentally," said Tazawa. "As these changes have taken place, I've felt better and better about my rehab program."
Tazawa, who will turn 24 on June 6, pitched in six games for the Red Sox last season, going 2-3 with a 7.46 ERA. Even before the injury, he was expected to spend most of this season in the Minor Leagues.
He won't pitch again until 2011.
Ian Browne is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.