The Detroit Lions were hoping to get a major boost to their offensive line during the playoff push with the news four-time Pro Bowl center Frank Ragnow was going to come out of retirement and rejoin t...

Four-time Pro Bowl center Frank Ragnow has failed his physical and will not play for the Detroit Lions this season, the team announced.

“These past couple of months have been very trying as I’ve come to the realization that my football journey is ending and I’m officially retiring from the NFL,” Ragnow wrote on Instagram.