Walker (shoulder) felt good after throwing four simulated innings Monday and remains on track to pitch during the weekend series against the Phillies, Mike Puma of the New York Post reports.
Walker exited his season debut after just two innings due to right shoulder bursitis, but he's on track to return in less than three weeks. The Mets have yet to officially announce their plans for the weekend, though Walker would be on schedule to start Saturday's contest.