Duarte sustained a shoulder injury during Tuesday's OTA session, Armando Salguero of the Miami Herald reports.
Duarte has appeared in just one regular-season game with Miami since being selected by the team in the seventh round of the 2016 NFL Draft. He's once again battling for a roster spot this offseason, so the injury could be a blow to the tight end's chances if it keeps him off the field for an extended period.