UNDATED (AP) — Cleveland receiver Josh Gordon has been suspended indefinitely by the NFL for violating the league's substance abuse policy again. He missed two games last season due to another violation of the policy but still let the team with 1,646 yards in receptions.

Gordon will have to apply for reinstatement following the season.

The 23-year-old had appealed his yearlong suspension for marijuana use and met with a league arbitrator in New York on Aug. 4. Arbitrator Harold Henderson upheld the suspension.

CHARLOTTE, N.C. (AP) — Carolina quarterback Cam Newton says he feels great and "there's no doubt" in his mind he'll be ready to play in the Panthers season opener Sept. 7 against Tampa Bay. The fourth-year quarterback is recovering from a hairline fracture to multiple ribs and says he's improving with each day.

Newton has never missed a start in three seasons of pro ball.

UNDATED (AP) — Bengals Pro Bowl linebacker Vontaze Burfict has signed a three-year extension on that runs through the 2017 season and will pay him a maximum of $20.05 million. Burfict is entering the final year on his original deal that will pay him a salary of $570,000. Under his extension, he'll make $10 million through next summer in salary and bonuses.

Burfict is the leader of a defense that finished third in the NFL last season in yards allowed.

Elsewhere;

— Tennessee has agreed to a multi-year contract extension with defensive lineman Jurrell Casey. Multiple media outlets say it's for $36 million over four years, with $20.5 million guaranteed. Casey is coming off a career year with 10.5 sacks, 90 tackles and 10 quarterback pressures.

— Arizona has signed defensive tackle Tommy Kelly, two days after he was cut by the New England Patriots. The 33-year-old is coming off surgery to repair a torn ACL but was playing with the Patriots' first-team defense this preseason before he was cut.