FILE - In this Oct. 30, 2016, file photo, New England Patriots' Tom Brady (12), Rob Gronkowski (87) and James Develin (46) head back to the sideline after LeGarrette Blount scored a touchdown during the second half of the team's NFL football game against the Buffalo Bills in Orchard Park, N.Y. Gronkowski says he is retiring from the NFL after nine seasons. Gronkowski announced his decision via a post on Instagram Sunday, March 24, 2019, saying that a few months shy of this 30th birthday “its time to move forward and move forward with a big smile.” (AP Photo/Bill Wippert, File)