Peyton Manning adjusting to new offense in Denver _lowres

Associated Press photo by David Zalubowski Broncos quarterback Peyton Manning throws a pass OTA's Wednesday.

ENGLEWOOD, Colo. — Shortly after the Denver Broncos received new orange T-shirts reading “Keep Your Feet,” the most expensive ones on the field got tangled.

When Peyton Manning took the snap and turned to hand off, the quarterback and the football both hit the turf.

Manning is getting used to being under center again as he adapts to coach Gary Kubiak’s run-oriented, play-action offense with all its rollouts, handoffs and mobile pockets.

As for the fall, “I don’t remember that happening,” Manning feigned through a mischievous grin Wednesday, saying video director Steve Boxer had already erased the evidence.

“That’s the advantage of being tight with your video guys,” Manning said.

Kubiak had a hard time getting the image out of his mind.

“The one thing the league always wants you to do is keep players off the ground. So, we preach it, we preach it, we give out T-shirts today saying ‘Keep Your Feet’ — he’s the first one to hit the ground,” Kubiak said. “So, yeah, we’re giving him a hard time.”

Manning, who has been much more comfortable operating from the shotgun late in his career, is coming up to the line of scrimmage on almost all of his snaps right now.

“We know the other end of the stick is fine. It’s something he’s been doing forever,” Kubiak said. “So, we’re going to spend a lot of time under center initially. ... He’s been very responsive and he’s working extremely hard.”

After what he called the Broncos’ “first real day of practice in shoulder pads,” Manning said he’s eager to smooth out the roughness in this new hybrid offense, saying, “I feel I can do whatever they ask me to do.”

Redskins

VETERANS CHESTER, PORTER RELEASED: In Asburn, Virginia, the Washington Redskins released guard Chris Chester and cornerback Tracy Porter.

The move clears about $6.3 million from Washington’s salary cap. The Redskins would like to re-sign left tackle Trent Williams, outside linebacker Ryan Kerrigan, and running back Alfred Morris, all of whom have been chosen for Pro Bowls and whose contracts expire after this season.

Chester, 32, signed with Washington in 2011. He had worked with the starters during Tuesday’s first practice of organized team activities.

Porter, 28, and a former Port Allen standout, signed with Washington in 2014 but played in just three games because of shoulder and hamstring injuries. He was absent because of flight complications, coach Jay Gruden said.

Bears

FORTE SAYS HE WON’T HOLD OUT FOR EXTENSION: In Lake Forest, Illinois, Chicago running back Matt Forte said he will not hold out for a contract extension.

A two-time Pro Bowl pick out of Tulane, he said he will report to training camp on time despite the team’s refusal to extend his deal. Forte is entering the final season of a four-year contract he signed in 2012.

He says the Bears told him they are “not talking about that type of stuff right now.” He does not expect to revisit contract talks with general manager Ryan Pace anytime soon.

The 29-year-old Forte set an NFL record for receptions by a running back last season with 102. He joined LaDainian Tomlinson as the only players with 100 catches and 1,000 yards rushing in the same season.