Cleveland Browns wide receiver Antonio Callaway will miss the first four games of the regular season due to a suspension.
An NFL spokesperson announced Callaway's four-game ban stems from a violation of the league's substance abuse policy.
"I take full responsibility for my actions," Callaway said in the announcement. "I made a mistake and I own that. I have taken steps to make myself better and I appreciate the Browns standing by me and supporting me during this time. I know there's nothing I can say to regain trust; it will all be about my actions.