For now, Calhoun -- long removed from his days of having to wear a protective boot -- is playing catch, hitting off the tee and running with 55-percent body weight on a specialized treadmill.
"I think it's just going to come down to getting my feet back under me, and running and cutting and decelerating are going to be a challenge, when that comes," Calhoun said. "But it's getting better every day. I'm really optimistic right now. I'm hoping to lean more toward that four-week timetable, but it's really whatever my ankle can take. I think once I can run and slow down, I'm pretty sure I'll get the OK to start rehab games or something."
Alden Gonzalez is a reporter for MLB.com. Read his blog, Gonzo and "The Show", and follow him on Twitter @Alden_Gonzalez. This story was not subject to the approval of Major League Baseball or its clubs.