DuRapau elected to retire from baseball Monday, Jon Heyman of MLB Network reports.
The Athletics reassigned DuRapau to their minor-league camp Monday, Martin Gallegos of MLB.com reports.
DuRapau signed a contract with the Athletics on Thursday, Alex Alex Stumpf of DKPittsburghSports.com reports.
DuRapau was reassigned to the Pirates' minor-league camp Monday, Rob Biertempfel of The Athletic reports.
DuRapau was outrighted to Triple-A Indianapolis on Wednesday, Adam Berry of MLB.com reports.
DuRapau was designated for assignment Wednesday.