Grant Newsome once sustained an injury that nearly cost him his leg. But ever since that day, the Michigan offensive lineman has been working towards a return to the field.

Unfortunately, Newsome won’t be stepping back on the field in a Michigan uniform, announcing his retirement from the game on Monday afternoon. In a long, thoughtful message, Newsome will medically retire from the game.

Newsome made the announcement public via Twitter and titled his note “not all stories have a happy ending.”

“Unfortunately for that dream, God has other plans for me,” Newsome wrote. “Despite the near miraculous healing in my knee, the totality of the injury was too much, as some recent secondary injuries coupled with the fragile nature of a vascular graph have made the risk of playing football again one that is too great for me to accept.

“So I have made undoubtedly the most difficult decision of my life and will medically retire from football.”

Newsome played in 10 career games at Michigan and started the first five games as a sophomore in 2016 before suffering the season-ending leg injury against Wisconsin on Oct. 1, 2016. That injury also cost him the 2017 season.