Rolando McClain felt so full of anger before he walked away from the game that he was worried he would do something he would regret.

"I felt like Aaron Hernandez, like I just wanted to kill somebody," McClain said in an interview for this week's ESPN The Magazine.

After a string of off-field trouble, McClain was released by the Oakland Raiders in April and signed with the Baltimore Ravens. But he abruptly decided to retire at the age of 23.