"I've been playing catch, doing a lot of lower-body workouts," he said. "But that's about it for now. I think I'm right on schedule. I don't know what that means as far as getting on the mound, but hopefully in the next few weeks."
The big right-hander admits he's "antsy" watching his teammates play every day, but takes some solace in knowing the recovery process is at least underway.
"I'm just throwing real short right now, just testing the waters to make sure everything's good," he said. "Then we'll lengthen it out as far as distance and amount, and I'll see how I hold up. Then I'll get on the mound from there."
Greg Johns is a reporter for MLB.com. Follow him on Twitter @GregJohnsMLB as well as his Mariners Musings blog. This story was not subject to the approval of Major League Baseball or its clubs.