The Cleveland Browns are expected to inquire about trading for Khalil Mack.

Mack is holding out in search for a new contract with the Oakland Raiders.

The Browns passed on Mack with the No. 4 overall pick in the 2014 NFL Draft.

NFL Network's Tom Pelissero reported Wednesday that McKenzie has fielded calls about Mack.

The Los Angeles Rams have agreed to sign Aaron Donald to a six-year deal worth $135 million with $87 million in guaranteed money.

The deal is the richest ever for a defensive player.

A first-round pick in 2014, Donald was entering the final year of his rookie contract and scheduled to earn $6.9 million this season.

Donald is a three-time All-Pro.

The Dallas Cowboys will acquire offensive lineman Parker Ehinger from the Kansas City Chiefs for cornerback Charvarius Ward.

Ehinger was a fourth-round pick out of Cincinnati in 2016. He won a starting job as a rookie, but tore his ACL and only started in Week 17 last season.

Teddy Bridgewater is only under contract for the 2018 season, but he's open to remaining with the New Orleans Saints and learning behind Drew Brees.

The Saints acquired Bridgewater from the New York Jets earlier this week.

"I definitely don't mind waiting," he said. "For me, I get to take advantage of this opportunity to grow as a man and as a football player.

"I've been following this offense since I was in college, and to be able to be a part of it now, it's a great feeling. You watch the tape, you look at the numbers and things like that, and you say, 'Wow.' It's an opportunity to be a part of something like that.

"I don't mind waiting. I get to learn from one of the best players to ever play this game, get to be in the room with a great group of guys, get to learn from Coach Payton. So I look forward to that."

The NFL and NFLPA are encouraged by ongoing discussions on the league's national anthem policy, but a resolution is not expected by the start of the regular season, according to sources.

The NFL's executive committee met with select owners earlier this week to discuss the policy. The two sides labeled those talks "productive" while noting they "remain committed to working together on solutions."

The league's new anthem policy was unanimously approved by owners in May but put on hold last month.

Rob Gronkowski has agreed to an improved deal with the New England Patriots adding $4.3 million to his contract.

Gronkowski can make up to $13.3 million in 2018.

Gronkowski considered retiring in the offseason.

The Oakland Raiders have fielded calls from teams interested in trading for Khalil Mack in recent days.

Those in contact with the Raiders get the impression they have "no imminent interest" in dealing Mack.

Oakland has been offered a first-round pick and another high selection, but they are seeking at least two first-round selections for the 2016 Defensive Player of the Year.

According to the New York Daily News, the Jets are one of the interested clubs.

A number of players have received lucrative contract extensions this offseason, but Rob Gronkowski isn't one of them.

"I'm always open for that," Gronkowski said.

The 29-year-old has two years remaining on his current contract with the New England Patriots, which has base salaries of $8 million in 2018 and $9 million in 2019. He is currently the fourth-highest paid tight end in the NFL.

"I mean, it is what it is," Gronkowski said. "That's not really my focus. I got a long season ahead, and just trying to focus on what I need to really do and just let everything else play out."

The Los Angeles Rams have restructured the contracts of left tackle Andrew Whitworth and wide receiver Robert Woods.

The moves reportedly clear $7 million in cap space for this season, which will come in handy as the Rams attempt to sign Aaron Donald to a long-term deal.

The Rams are believed to be very close to an agreement with Donald.

The Cleveland Browns have released Mychal Kendricks after he was charged with insider trading.

The Browns said they were aware of Kendricks' involvement prior to signing him to a one-year deal in June, but "circumstances have changed" and the team has elected to release him.

"I would like to apologize," Kendricks said in the statement released by his attorneys. "Four years ago, I participated in insider trading, and I deeply regret it. I invested money with a former friend of mine who I thought I could trust and who I greatly admired. His background as a Harvard graduate and an employee of Goldman Sachs gave me a false sense of confidence.

"To this point, I had worked my tail off since I was 5 years old to become a football player. I was drawn in by the allure of being more than just a football player. While I didn't fully understand all of the details of the illegal trades, I knew it was wrong, and I wholeheartedly regret my actions."