Duffy (heel) played four innings in his first rehab game with High-A Charlotte on Tuesday, singling and striking out over three at-bats, Roger Mooney of the Tampa Bay Times reports.
The major takeaway was Duffy's ability to finally get some game action in, which reportedly went off without a hitch Tuesday. He's expected to see action in multiple games at the minor-league level before being deemed ready for a move up to the Rays.