Patriots tight end Rob Gronkowski announces retirement
Patriots' Rob Gronkowski announces his retirement following nine NFL seasons - The San Diego Union-Tribune
New England Patriots star Rob Gronkowski announces his retirement
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Patriots tight end Rob Gronkowski announces retirement
Former Patriots TE Rob Gronkowski announces retirement for 2nd time
Rob Gronkowski retires again, but could make another comeback in 2022 or 2023, agent says (report)
Patriots tight end Rob Gronkowski announces retirement