Cory Morrissey walked away from football, deciding not to play roughly an hour before what would have been his first NFL practice with the Ravens.
The undrafted former Iowa State defensive end had agreed to terms on a three-year rookie contract, but decided to not play prior to the Ravens' rookie minicamp.
A two-time honorable-mention All-Big 12 Conference selection, Morrissey had 51 tackles, six sacks, 8.5 tackles for a loss and four quarterback hurries last season as a captain for the Cyclones.
Morrissey attended the Ravens' meetings Friday morning before deciding to not play shortly before practice started.
"I have made the decision to step away from the game of football," Morrissey announced on his Facebook page. "I've truly realized that I've lost the passion to play the game. I have been hiding behind a mask comprised of what people think of me and what others want me to do but not what I truly want for myself.
"Being burnt out and not finding any excitement for the opportunity I've had has made a huge inner battle with myself where my anxiety has sky rocketed. This life should never be fueled by money, and I am very thankful for the opportunity. The support I've had from everyone through this process has been amazing. Thank you."