Duda has been on the disabled list since June 23 with a left intercostal strain.
• Collins said Jon Niese threw a bullpen session and will likely pitch in a rehab outing sometime within the next week.
• Catching prospect Travis d'Arnaud caught five innings for the Gulf Coast League Mets in a rehab game on Wednesday. He went 1-for-3 at the plate.
Chris Iseman is an associate reporter for MLB.com. David Wilson is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.