A day after making a handful of roster additions and cuts, the Ravens announced on Wednesday that they had released fullback Chad Diehl, an undrafted free agent who had participated in the team's rookie minicamp over the weekend.

No reason for the move was given, but Diehl shed a little light on it on his Facebook page.

“At rookie mini-camp this past weekend I suffered another concussion,” Diehl said via the Spartanburg Herald Journal (S.C.). “With this concussion happening so soon after the concussion I had in January at the Senior Bowl it left many people concerned including family, doctors, and myself about my health and future if I were to continue playing. With that being said, after having an MRI done, along with multiple tests and a history of quite a few collisions as a fullback, the doctor and I came into agreement that it would be in my best interest for my football career to go ahead and come to an end."

Diehl (6-foot-1, 257 pounds) got just six carries and caught seven passes in his career at Clemson. He was used almost strictly as a straight-ahead blocker, and he also played a lot on special teams. 

He would have been a long shot to make the Ravens' roster as Vonta Leach is a Pro Bowl fullback and the team may not have had room to carry two on the roster. But it still is a sad story nonetheless, that a player had to abandon his NFL dreams before the start of training camp.  

It also comes on the heels of Ohio State linebacker Andrew Sweat's decision to retire rather than play for the Cleveland Browns because of his fear of the effects of concussions.

To fill Diehl's roster sport, the Ravens re-signed former Texas fullback Jamison Berryhill, who had been cut after participating in the team's rookie minicamp.