NFL Week seven round-up: Kansas City Chiefs maintain unbeaten record against Houston Texans At Landover, Roy Helu's third touchdown lifted Washington to a 45-41 win over Chicago. Robert Griffin III completed 18 of 29 passes for 298 yards with two touchdowns and one interception for the Redskins, who have both of their wins against backup quarterbacks. This time it was Josh McCown, who entered in the second quarter after Jay Cutler left with a groin injury. Griffin also ran 11 times for a season-high 84 yards against a defense depleted by injuries. The Steelers edged the Ravens 19-16 with Shaun Suisham drilling a 42-yard field goal with no time remaining. Ben Roethlisberger completed 17 of 23 passes for 160 yards and a touchdown. He hit Antonio Brown for a pair of big gains on Pittsburgh's final drive, putting Suisham well within range to win it. Joe Flacco passed for 215 yards and a touchdown, but couldn't stop the defending Super Bowl champions from losing for the third time in their last four games. In other games, the Packers had a 31-13 win over the Browns, the 49ers made it four wins in a row with a 31-17 victory over the Titans, and the Bengals completed a 27-24 win over the Lions with Mike Nugent's 54-yard field goal as time expired. Tony Romo threw for 317 yards and one touchdown and the Dallas Cowboys overcame a sluggish start to beat the Eagles 17-3 and take sole possession of first place in the NFC East. It was the ninth consecutive home defeat for the Eagles. At Atlanta, Matt Ryan threw for 273 yards and three touchdowns, including two to Jacquizz Rodgers, as the Falcons ended their three-game losing streak with a 31-23 result against the Buccaneers. The Bills edged the Dolphins 23-21 after Mario Williams forced a fumble when he sacked Ryan Tannehill with less than three minutes left, setting up the winning field goal. And Dan Carpenter, released in August after five seasons with the Dolphins, beat his former team by making a 31-yarder with 33 seconds to go. Elsewhere, the Panthers beat the Rams 30-15 and the Chargers continued Jacksonville's terrible start to the season with a 24-6 win that consigned the Jaguars to their seventh consecutive defeat - all by double digits.