Rob Gronkowski Says He Might Retire Again

Rob Gronkowski talks about winning his fourth Super Bowl, the secret to his Gronk spike and his relationship with Tom Brady. The Tonight Show Starring Jimmy Fallon. Stream now on Peacock: Subscribe NOW to The Tonight Show Starring Jimmy Fallon: Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35/10:35c Get more The Tonight Show Starring Jimmy Fallon: JIMMY FALLON ON SOCIAL Follow Jimmy: Like Jimmy: Follow Jimmy: THE TONIGHT SHOW ON SOCIAL Follow The Tonight Show: Like The Tonight Show: Follow The Tonight Show: Tonight Show Tumblr: The Tonight Show Starring Jimm...y Fallon features hilarious highlights from t

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