Roy Halladay had a smile on his face as he walked back to the clubhouse after throwing on flat ground Sunday morning.

It was easy to see why. Halladay is getting closer to returning from a strained lat muscle in the back of his shoulder, which he said could happen shortly after the All-Star break.

Halladay has been throwing for two weeks now, including his first bullpen session Friday, and hasn't felt a hint of soreness or any kind of symptoms in the back of his shoulder. Halladay has been out since leaving his start after the second inning in St. Louis on May 27.

Halladay said he'll throw his next bullpen session either Tuesday or Wednesday in New York, where the Phillies will play the Mets. It'll be what he called "an extended bullpen," where he'll simulate pitching, resting between innings, then pitching again.

From there, Halladay said there's a good chance he'll go to Clearwater during the All-Star break to throw. Halladay said he might not need to go on a minor-league rehab assignment, that facing hitters in Clearwater during longer bullpen sessions might suffice.

"I'd like to be back soon after the (All-Star break) as I can," Halladay said. "This whole process, we've been going day to day, so there's not really like a (target date).