Rob Gronkowski threatened to retire after he almost got traded to the Lions
Tom Brady reacts to Gronk's comments on trade report
Lions Nearly Traded For Rob Gronkowski This Offseason
Rob Gronkowski nearly became a member of the Detroit Lions this past offseason - Article - Bardown
Rob Gronkowski confirms he nixed a trade to the Lions - The Boston Globe
Report: Lions tried to trade for Rob Gronkowski, who threatened to retire - NBC Sports
Report: Texans Discussed Trade For Rob Gronkowski With Patriots - Battle Red Blog
Tennessee Titans get big defensive advantage with Rob Gronkowski out
Patriots: Rob Gronkowski's infamous NFL Draft story keeps getting better - A to Z Sports
Chris Gronkowski says Rob is 'super frustrated' on the field
Rob Gronkowski trade grades - Did the Bucs just pull off some Patriots magic? - ESPN
Detroit Lions reportedly discussed trade for Rob Gronkowski : r/nfl
Rob Gronkowski was reportedly almost traded to the Detroit Lions
Rob Gronkowski - Wikipedia