The day after Johnson was arrested, his third arrest since the Bears drafted him in 2004, he was at a night club when his friend was shot to death.
"I don't believe the team has to tell me it's my last chance. I know the opportunity that I have in front of me and it's great. It's immense and to squander that opportunity would be a tragedy at this point and that's not gonna happen," Johnson said at a news conference at the Bears' practice facility in suburban Lake Forest, reports AP.
Johnson was arrested after a Thursday raid on his home in north suburban Gurnee in which police found six unregistered firearms.
A day later, Bears general manager Jerry Angelo had issued a warning to Johnson and the player publicly apologized. That night, he went to Ice Bar in Chicago's River North area with his friend and bodyguard Willie B. Posey, who was shot to death.