RICHMOND, Va. -- Michael Vick filed a plea agreement in federal court Friday admitting to a dogfighting charge and agreed the enterprise included killing fighting dogs and gambling.

He was later suspended indefinitely by the NFL.

NFL Commissioner Roger Goodell said Vick's behavior was illegal, cruel and reprehensible, and violated his contract.

"Even if you personally did not place bets, as you contend, your actions in funding the betting and your association with illegal gambling both violate the terms of your NFL Player Contract and expose you to corrupting influences in derogation of one of the most fundamental responsibilities of an NFL player," he said in a statement.

The commissioner didn't speak to Vick but based his decision on the court filings. NFL spokesman Greg Aiello said Goodell may meet with Vick in the future, and Goodell said he would review the suspension after all the legal proceedings.

Falcons owner Arthur Blank said Vick's admissions describe actions that are "incomprehensible and unacceptable."

The suspension makes "a strong statement that conduct which tarnishes the good reputation of the NFL will not be tolerated," he said in a statement.

Goodell said the Falcons could "assert any claims or remedies" to recover $22 million of Vick's signing bonus from the 10-year, $130 million contract he signed in 2004, according to The Associated Press.

The Atlanta Falcons quarterback is scheduled to formally enter his plea Monday in U.S. District Court.

According to court documents, Vick agreed to plead guilty to conspiracy to travel in interstate commerce in aid of unlawful activities and to sponsor a dog in an animal fighting venture.

The maximum penalties for the violation include a maximum term of five years in prison, a $250,000 fine, full restitution and three years probation.

The court documents said the Atlanta Falcons star didn't receive any of the purse money from the fights, and that Vick agreed that dogs died "as a result of the collective efforts" of Vick and two of his co-defendants.

Vick's three co-defendants already pleaded guilty and were expected to testify against Vick if the case went to trial.

The NFL, which has barred Vick from participating in the Falcons' training camp, has not yet ruled on his future in the league.