Lions' 32-year old former Super Bowl champion announces retirement from NFL

After a full-circle NFL career, Pat O'Connor is hanging up his helmet for good.He was officially placed on the reserve/retired list by the Detroit Lions on Thursday, ending his time in the league at the age of 32.O'Connor entered the NFL as a seventh-round pick of the Lions in the 2017 NFL Draft out of Eastern Michigan.The 6-foot-4, 300-pound defensive lineman didn't actually make the Lions in that preseason, though. He had to go through a number of tryouts that fall before the Tampa Bay Buccaneers signed him in October.MORE: Brandon Aiyuk's latest decision probably ended his NFL careerHe was then cut and re-signed by the Bucs multiple times, but O'Connor eventually found a way to stick around in Tampa Bay.O'Connor was mostly a depth and special teams piece. He maxed out at six tackles in