There’s nothing like a little melee to break up the monotony of training camp.

Jaguars receiver Damon Gibson had Saints linebacker Roger Knight pinned to the ground and was throwing haymakers at his helmet.

Buffalo Bills quarterback Drew Bledsoe signals before the snap on Friday during training camp in Pittsford, N.Y. The Bills will scrimmage against the Cleveland Browns today.

Knight’s teammate, Bryan Cox, came flying in to knock Gibson off the pile.

Moments later, Jaguars receiver Bobby Shaw went after Cox.

It was the highlight of an otherwise routine day Friday, as New Orleans traveled to Jacksonville for a pair of practices.

“I’m out there to play and protect myself,” said Gibson, who gives up about three inches and 50 pounds to Knight. “If someone comes after me, I’m coming after them.”

Gibson’s fight was about the only facet the Jaguars won, however. Coach Tom Coughlin said he was disappointed with the play of his linemen.

Several Jaguars receivers fighting for jobs most notably second-year free agent Chris Redmond made a number of nice catches.

Falcons

Atlanta has finally signed first-round draft pick T.J. Duckett, who the Falcons hope will be their No. 1 running back.

Earlier this week, the team said it had broken off talks with Duckett, chosen 18th overall in last April’s draft.

And before that, they postponed negotiations for physical examinations of the player, who was injured in a fight following a concert in Michigan.

Chargers

Running back LaDainian Tomlinson, already slowed in training camp by a blister, sprained his left ankle and was driven off the field on a cart.

Tomlinson, who was to be examined by a doctor, was hurt during a team drill in which he was to hit the hole between the right guard and tackle.

He thinks another player fell on his ankle from the inside.

“I don’t think it is too bad. Hopefully it will just be a day-to-day thing, but we’ve just got to be careful with it,” Tomlinson said. “It’s not something that is going to keep me out for a while.”

Seahawks

Defensive tackle Cortez Kennedy, who sat out last season, announced his retirement from football. Kennedy, who played 11 seasons in Seattle, was the NFL’s defensive player of the year in 1992 and was named to the all-decade team of the ’90s.

Bills

Linebacker Brandon Spoon is out indefinitely after tearing his right biceps tendon in practice.

Spoon was hurt while attempting to make a tackle as the Bills spent the day practicing against the Browns in preparation for today’s scrimmage against the Browns at St. John Fisher College.

Bills coach Gregg Williams said Spoon will have surgery Monday.

Meanwhile, the team’s revamped offensive line ran into injury troubles. Left guard Ruben Brown sprained his left knee and right tackle Mike Williams, the No. 1 draft pick, suffered a thumb injury and left the practice field.

Jerry Ostroski, the starting right guard last season, hadn’t practiced after undergoing surgery on his right knee in June. The injuries occurred during joint morning and afternoon practices between Buffalo and Cleveland in preparation for today’s scrimmage.

Ravens

The Baltimore Ravens signed free agent lineman Ethan Brooks to a one-year, $525,000 contract, a move that could end the team’s experiment of using guard Edwin Mulitalo at right tackle.

Brooks has played both offense and defense since breaking into the NFL with Atlanta in 1996.

But Baltimore plans to use him exclusively on offense.

If Brooks, 30, can assume the starting right tackle role, Mulitalo would be able to return to his strongest position.

Mulitalo has been working at right tackle this summer after playing guard in each of his first three NFL seasons. He was moved to tackle to fill the void left by the departure of Leon Searcy and Kipp Vickers, both salary-cap casualties.

Bears

Wide Receiver Ahmad Merritt injured his left hand and starting right guard Chris Villarial hurt his right thumb in practice.

Coach Dick Jauron said both will have X-rays and Merritt may have fractured his hand.

Safety Mike Brown broke a small bone in his right hand earlier this week and will likely miss the two preseason games.

Browns

Running back William Green, Cleveland’s top draft pick, hurt his right shoulder in practice Friday and is listed as day to day.