Rob Gronkowski looks on during the AFC Divisional Playoff against the Tennessee Titans at Gillette Stadium on Jan. 13, 2018 in Foxborough, Massachusetts. (Photo by Maddie Meyer/Getty Images)

Rob Gronkowski looks on during the AFC Divisional Playoff against the Tennessee Titans at Gillette Stadium on Jan. 13, 2018 in Foxborough, Massachusetts. (Photo by Maddie Meyer/Getty Images)