Gronkowski announces retirement again but is 3x the charm
Rob Gronkowski announces his NFL retirement
Rob Gronkowski on excluding Patriots in second retirement post
Patriots TE Rob Gronkowski announces retirement
Rob Gronkowski retires from the NFL again - The Boston Globe
Rob Gronkowski Announces Retirement From NFL, Again - E! Online
Patriots Tight End Rob Gronkowski Announces Retirement
Rob Gronkowski on excluding Patriots in second retirement post
Rob Gronkowski Announces NFL Retirement for Second Time (UPDATE
Rob Gronkowski Second NFL Retirement Announcement
Rob Gronkowski announces second retirement from NFL
Rob Gronkowski announces his retirement from NFL for second time