CLEVELAND — Kellen Winslow's use of a motorcycle might have violated standard league contract language that prohibits players from engaging in dangerous activities.

The Cleveland Browns could require Winslow, who lost millions last year because of a season-ending injury in a game, to pay back a $4.4 million bonus he received in March.

The 21-year-old tight end sustained internal injuries and damage to his right shoulder and right knee in an accident Sunday that sent him flying over the handlebars of his recently purchased motorcycle.

Winslow was being treated at the Cleveland Clinic, where the team's medical staff was waiting for swelling in the shoulder and knee to subside. The team declined yesterday to provide an update on his condition.

League spokesman Greg Aiello said the standard contract forbids players from taking part in any activity "which may involve a significant risk of personal injury."

It is another setback for the struggling Browns and Winslow, who entered the league last season with high expectations. His rookie season ended in disappointment when he broke his right leg during an onside kick in the second game, which was against Dallas.

With his leg still on the mend, Winslow purchased a motorcycle last month and was learning how to ride it in a parking lot at a community college. Winslow hit a curb at about 35 mph and was thrown from the motorcycle, Westlake police Lt. Ray Arcuri said.

Winslow held out last year before signing a contract worth — including incentives — $40 million, a record for a tight end. He was the No. 6 pick in the draft.

Teams have the option of making contract language regarding dangerous activities more or less restrictive during negotiations with players, Aiello said. The Browns declined to release information about Winslow's contract.

According to ESPN.com, two league sources said Winslow's contract "includes language which is even more specific and which expressly forbids riding a motorcycle."

• Brett Favre said he is disappointed with teammate Javon Walker's contract holdout, and suggested the Green Bay Packers could manage without the Pro Bowl wide receiver.

"If Javon wants to know what his quarterback thinks, and I would think he might, I'd tell him he's going about this the wrong way," Favre said. "When his agent tells him not to worry about what his teammates think and all that stuff, I'd tell him I've been around a long time and that stuff will come back to haunt you."

Walker, 26, stayed away from a mandatory minicamp that ended Sunday. The 35-year-old Favre, who had been excused from the minicamp by coach Mike Sherman, left no doubt how he thinks the team should handle the Walker situation. "I sure hope the Packers don't give in to him," Favre said.

• Cincinnati terminated the contract of linebacker Kevin Hardy.

Hardy, 31, spent two of his nine league seasons with the Bengals. He led the team in tackles with 124 in 2003, and started 14 games last season.

The Bengals have loaded up on linebackers in the past two drafts, and used their first two picks this year on Georgia teammates David Pollack and Odell Thurman.

• Safety Sam Brandon, 25, signed a new contract that will keep him with the Denver Broncos.

Terms for Brandon, a free agent who will begin his fourth season with the Broncos, were not disclosed.

• The Houston Texans signed linebacker Zeke Moreno, punter Curtis Ansel and undrafted rookie Myniya Smith.

Moreno, who spent the last four seasons with San Diego, played in nine games last season before going on injured reserve with a shoulder injury. He had his best season in 2003, when he started 12 games and made 78 tackles.

Ansel signed with Detroit as an undrafted rookie free agent in 2004 and was later released in training camp. Smith is a 6-foot-6, 343-pound defensive lineman from Southern University.

• The commonly held perception is that Bill Parcells, 64, will coach the Dallas Cowboys through this season and maybe through 2006, when his four-year, $17.5 million contract expires.

But Cowboys owner Jerry Jones, speaking on a radio show, said he could envision Parcells coaching a few years after his existing deal is over. "I know we get along well," Jones said on the show. "We're making decisions in a healthy way with good debate and all of that is working a lot better than most people thought it would."

There were reports earlier this offseason that Parcells contemplated retirement, but he dismissed that notion in February and again last weekend. "You get a little down and out once in awhile, but I didn't think about quitting," Parcells said. "I didn't think about quitting. I just wouldn't do it."