Agent: Gronk retired, but people change minds

PHOENIX -- Rob Gronkowski announced his retirement from the NFL on Sunday, but his agent told ESPN on Monday that he wouldn't be surprised if he reconsidered in the future.

"Rob is 29 years old. He's still a very young man. It wouldn't shock me if he has a change of heart, if he feels great and he decides that he wants to play football," Drew Rosenhaus said on "Get Up!"

"But this is just me talking. This isn't Rob. And I don't want to create any unnecessary expectations. Rob is a very unique personality. If the team was struggling or they needed him at some point next year, and let's just say hypothetically Tom Brady gave him a call and said 'Rob, I need you,' I wouldn't be shocked if he came…