17 NFL players to come out of retirement

Rob Gronkowski will return as a Tampa Bay Buc, becoming another player who returned after retiring.

Rob Gronkowski

Mark J. Rebilas-USA TODAY Sports

Rob Gronkowski left on top of his game as a Super Bowl champion following the 2018 season. He sat out 2019 and will return to play with Tom Brady in Tampa Bay for the 2020 campaign.