Bryant has been suspended three times in the past four years for violations of the league's substance abuse policy. The most recent came in December, when he was suspended indefinitely for violating the terms of his conditional reinstatement from a previous ban.
The Raiders waived Bryant in September amid a potential suspension, but they re-signed him 10 days later to a one-year deal. He caught 19 passes in eight games last season before he was placed on injured reserve on Dec. 5, one week before his latest suspension was announced. He is currently a free agent.
Bryant originally planned to apply for reinstatement in May, but he "took the time to improve himself first," according to Rapoport. It is unknown when -- or if -- Bryant will be reinstated.