There was concern for Odell Beckham Jr. after he sustained a knee injury in the Cleveland Browns' tight win over the Cincinnati Bengals.

Beckham had to be taken off in the first quarter following an injury as the Browns star tried to make a tackle after quarterback Baker Mayfield – who turned in a remarkable performance – threw an interception with his first pass, though Cleveland prevailed 37-34.

Elsewhere, the Pittsburgh Steelers came out on top in an NFL contest between two 5-0 teams, seeing off the Tennessee Titans 27-24 on Sunday.

CONCERN FOR BECKHAM BUT MAYFIELD SHINES

Mayfield went on to star for the Browns, but his first pass was a dreadful one, as he picked out the Bengals' Darius Phillips rather than wide receiver Beckham – it was the second game in succession that Cleveland's quarterback has seen his opening pass intercepted.

In an attempt to recover, Beckham lunged into a tackle, but ultimately suffered an injury which NFL sources suggest could be serious. The Bengals pounced on the pick with a drive that ended with a touchdown run for quarterback Joe Burrow.

Yet Mayfield – who came in for criticism after a poor display against the Steelers last week – overcame his bad start to run the show for the Bengals.

Having gone 0 for 5, Mayfield subsequently completed the next 22 of 23 attempted passes. His final throw was met brilliantly by Donovan People-Jones in the end zone, securing the win for the Browns with 15 seconds remaining.

It was a fifth touchdown throw of a frantic game for Mayfield, who said afterwards: "What criticism? What are you talking about?"

Cincinnati rookie Burrow was the other star performer, landing 35 of 47 passes for a season-high 406 yards and three touchdowns, but his team's defense was no match for a fired-up Mayfield, who finished with 297 yards and five touchdowns.

STEELERS STAY PERFECT THANKS TO GOSTOWKSI MISS

Stephen Gostkowski missed a 45-yard field goal with 19 seconds left on the clock as the Steelers held firm to secure a three-point triumph over the Titans, ending their opponents' winning start while preserving their perfect record.

Led by the excellent Ben Roethlisberger, who went 32 of 49 passing for 268 yards, two touchdowns and three interceptions, the Steelers started well.

An opening-drive touchdown snapped a 23-game streak without one and the Steelers kept up the momentum in the second quarter with Benny Snell going over.

Corey Davis responded for the Titans, though Chris Boswell nosed Pittsburgh further ahead before Roethlisberger picked out Diontae Johnson for their third touchdown.

Boswell converted a 30-yard field goal to make it 27-7 at the start of the third quarter, and those points proved vital as the Titans mounted a comeback.

With Derrick Henry – who finished on 75 running yards – racing into the end zone late on, the chance to level things up fell to kicker Gostkowski, only for the veteran campaigner to slice wide.

Pittsburgh (6-0) top the AFC North, with the Browns (5-2) in third and Bengals (1-5) fourth. 

COWBOYS ANOTHER QUARTERBACK DOWN AFTER HEAVY WASHINGTON DEFEAT

The Dallas Cowboys failed to overcome the third-quarter loss of quarterback Andy Dalton as they went down 25-3 to the Washington Football Team.

Dalton exited after taking a shot to the head, with Washington linebacker Jon Bostic ejected for the hit.

Dallas' back-up quarterback, making his second start in place of the injured Dak Prescott, was ruled out with concussion, and head coach Mike McCarthy was infuriated with how his team reacted to Dalton's injury, with no players confronting Bostic.

"We speak all the time about playing for one another, protecting one another. It definitely was not the response you would expect," McCarthy told reporters. 

The Cowboys and Washington are now tied on 2-5 in an open NFC East, which is topped by the Philadelphia Eagles.

Meanwhile, Drew Brees completed 29 passes for 287 yards and two touchdowns as the New Orleans Saints beat the Carolina Panthers 27-24 to move top of the NFC South.

The Buffalo Bills claimed an 18-10 win over the struggling New York Jets, and the Green Bay Packers are now 5-1 after a convincing 35-20 victory against the Houston Texans, who have just one win to their name in 2020.

Also 1-6 are the Atlanta Falcons, who went down by one point to the Detroit Lions.

Week 7 scores:

Philadelphia Eagles 22-21 New York Giants
Pittsburgh Steelers 27-24 Tennessee Titans
Washington Football Team 25-3 Dallas Cowboys
Buffalo Bills 18-10 New York Jets
New Orleans Saints 27-24 Carolina Panthers
Green Bay Packers 35-20 Houston Texans
Cleveland Browns 37-34 Cincinnati Bengals
Atlanta Falcons 22-21 Detroit Lions