Kansas City Chiefs running back Jamaal Charles, who was involved in a violent collision with San Diego Chargers cornerback Brandon Flowers while scoring a touchdown but stayed in Sunday’s game, now admits that maybe he had symptoms of a concussion.

“It definitely hurt,” Charles said during an interview with ESPN Radio on Tuesday. “It’s like, I woke up — I mean, like, a couple plays later I was seeing light bulbs, like, light bulbs around my eyes, and I was trying to catch them. But I was in the game so I was like, ‘All right, let’s get the ball and run again.'”

After Sunday’s game at San Diego, Charles passed off the helmet-to-helmet hit in the second quarter as no big deal. Flowers left the game with a concussion, but Charles finished the game. According to ESPN, Chiefs trainer Rick Burkholder said Wednesday that Charles was placed in the protocol Tuesday and passed all the tests, but the team will continue to monitor his symptoms.

—New England Patriots cornerback Darrelle Revis showed up late for work on Tuesday and coach Bill Belichick promptly sent him home, The Boston Globe reported.

When Revis did not arrive on time for a 7:30 a.m. meeting, Belichick wouldn’t allow him to participate in practice. A day later, Revis was back at practice but wouldn’t discuss the reason for his absence.

“Between me and coach,” Revis told reporters on Wednesday. “Talk to him about it.”

—The Patriots officially acquired linebacker Akeem Ayers on Wednesday in a trade with the Tennessee Titans.

Trade terms were not disclosed, but it was reported Tuesday that the trade includes the Patriots giving up a sixth-round draft choice to the Titans for Ayers and Tennessee’s seventh-round pick.

The Patriots also released linebacker Ja’Gared Davis, who was signed from the practice squad to the 53-man roster on Oct. 4.

—It was bound to happen. After one bad performance by Brian Hoyer, the Johnny Manziel quarterback watch is officially on at the Cleveland Browns headquarters.

Hoyer was just 16 of 41 for 215 yards with an interception and a strip sack in the 24-6 loss to Jacksonville last week. Coach Mike Pettine said he toyed with the idea of inserting the rookie Manziel — not to replace Hoyer, but to provide a spark — then decided not to do it. He might not be as patient if Hoyer struggles against the Oakland Raiders on Sunday.

“Nothing has changed,” Pettine said. “If the situation this week maybe calls for (Manziel) to play some, then that will be the case. We’re not going to hit the panic button after one loss.”

—Amid the New York Giants rocky season, one bright spot has been the quiet re-emergence of quarterback Eli Manning.

Through seven games, Manning has completed 64.9 percent of his passes for 1,573 yards. He has also thrown 14 touchdowns and has drastically cut down his interceptions from 15 at this point in the season last year to just five in 2014.

What’s been the biggest reason for Manning’s increased efficiency?

“Probably his footwork,” quarterbacks coach Danny Langsdorf said. “We teach it a little bit differently. I think that is probably the biggest area in how fast he has been playing is his footwork.”

—The first-ever contributor’s committee for the Pro Football Hall of Fame on Wednesday named former NFL general managers Bill Polian and Ron Wolf as finalists for induction at the pre-Super Bowl meeting that will take place Jan. 31, the day before Super Bowl XLIX.

Since the Hall of Fame was established in 1963, there have been 19 contributors elected to the Hall. However, 10 were elected in the first five years and only nine in the ensuing 47 years. To that end, the Hall’s Board of Trustees voted in August to create a contributor’s committee, similar to the senior’s committee, in which those nominated are voted on individually and not in competition with players and coaches.

Polian and Wolf, along with senior’s nominee center Mick Tingelhoff, will have to get 80.4 percent of the entire committee’s vote at the selection meeting, which means 37 yes votes from the 46 selectors.

—NFL offensive linemen Mike and Maurkice Pouncey will not face prosecution from a July altercation at a Miami Beach nightclub.

The twin brothers have been sued by a trio of plaintiffs who claim they suffered injuries as a result of a brawl that occurred while the Pounceys were celebrating their birthday.

Mike Pouncey plays center and guard for the Miami Dolphins and Maurkice Pouncey plays center for the Pittsburgh Steelers. Both played at the University of Florida.

—Denver Broncos quarterback Peyton Manning, who broke Brett Favre’s career touchdown record and added to his own mark in a four-touchdown night, was named AFC Offensive Player of the Week for the 27th time in his career.

Manning completed 22 of 26 passes (84.6 percent) for 318 yards with a passer rating of 157.2 in Denver’s 42-17 win over the San Francisco 49ers on Sunday night. His third touchdown of the game gave him 509 for his career, breaking Favre’s all-time record.

Fellow MVP candidate Aaron Rodgers of the Green Bay Packers took NFC Offensive Player of the Week honors.

Rodgers completed 19 of 22 passes (86.5 percent) for 255 yards and three touchdowns for a passer rating of 154.5 in a 38-17 win over the floundering Carolina Panthers.