The Padres reassigned Locastro to minor-league camp Monday.

Locastro signed a minor-league contract with the Padres on Wednesday that includes an invitation to spring training, Jon Morosi of MLB Network reports.

Locastro elected to become a free agent Monday, Abbey Mastracco of the New York Daily News reports.

The Mets placed Locastro on outright waivers Thursday, Anthony DiComo of MLB.com reports.

Locastro is starting in left field and batting ninth in the first game of Wednesday's doubleheader against the Mets, Anthony DiComo of MLB.com reports.

Locastro (thumb) was activated from the 60-day injured list and is starting in center field, batting ninth in Game 2 on Saturday versus Atlanta, Anthony DiComo of MLB.com reports.

Locastro (thumb) is hoping to be activated before Game 2 of Saturday's doubleheader or ahead of Sunday's game against Atlanta, Anthony DiComo of MLB.com reports.

Locastro (thumb) began a rehab assignment with Triple-A Syracuse on Tuesday.

Mets manager Buck Showalter announced Tuesday that Locastro will require surgery to repair the torn UCL in his right thumb, Tim Healey of Newsday reports.

The Mets transferred Locastro (back/thumb) from the 15-day injured list to the 60-day injured list on Friday.