Rob Gronkowski not committing to return to play for Patriots in 2018
Rob Gronkowski - 'Mindset wasn't there' New England Patriots Tampa Bay Buccaneers - TSN.ca
Connection between Tom Brady, Rob Gronkowski as strong as ever
Rob Gronkowski Will Not Return for Patriots' Playoff Run - The New York Times
NFL roundup: Patriots clinch 1st-round bye
Tom Brady, Bill Belichick reunion delivers as Buccaneers beat Patriots in NFL Week 4 - Sports Illustrated
Patriots Notebook: Gronkowski makes limited return
Rob Gronkowski returns to practice with Patriots - The Boston Globe