John Penisini un-retires after the Lions waived him
Utah's John Penisini Retiring From NFL
Detroit Lions Transactions
Panthers roster analysis: One thought on every player on defense, special teams - The Athletic
Lions' John Penisini Reveals Thoughts About Retirement
Utah football: John Penisini retires after 2 NFL seasons with Detroit Lions - Deseret News
Kyle Ireland NFL Locals Insider, Podcast Host - Page 15 of 152 - KSL Sports
Kyle Ireland NFL Locals Insider, Podcast Host - Page 15 of 152 - KSL Sports
Utah's John Penisini Retiring From NFL