Bills' Allen solid in his season debut

Josh Allen needed just six plays to lead the Bills 70 yards for an opening-drive touchdown before taking a seat in his preseason debut, and Buffalo routed the Denver Broncos’ backups 42-15 on Saturday.

Allen completed all three attempts for 45 yards, capped by a 28-yard touchdown to Gabe Davis in showing he and new offensive coordinator Ken Dorsey are on the same page. Backup Case Keenum continued the scoring by closing out the first half overseeing three touchdown drives.

Acquired in a trade with Cleveland this offseason, Keenum bounced back from a sloppy preseason debut by finishing 16 of 18 for 192 yards and a perfectly placed 7-yard touchdown pass to tight end O.J. Howard.

Zach Moss rounded out the first-half scoring with a pair of 1-yard touchdown runs, while Duke Johnson scored on 2- and 8-yard runs in the second half.

Buffalo extended its preseason winning streak to 10 games. The run is the NFL’s second-longest active streak.

CHIEFS 24, COMMANDERS 14 » Patrick Mahomes led two similar touchdown drives and Kansas City defeated Washington in a preseason game.

The first one was a 12play, 87-yard drive in 5:28, capped by a 5-yard touchdown pass to Jody Fortson. The second was a 12play, 82-yard drive that took 5:25 and was capped by a 7-yard touchdown to Fortson.

Mahomes finished 12 of 19 for 162 yards. In two preseason games, Mahomes has played three series and led three touchdown drives.

Washington starter Carson Wentz played three series and finished 6 of 9 for 64 yards.

STEELERS 16, JAGUARS 15 » Kenny Pickett’s second preseason performance was as impressive as his first, and it came against better competition. Pittsburgh’s rookie quarterback was 6 of 7 for 76 yards and a touchdown in a victory at Jacksonville.

TITANS 13, BUCCANEERS 3 » Rookie Malik Willis threw the first touchdown of his NFL career and Tennessee beat Tampa Bay in its exhibition home opener.

It was the second straight start for the third-round draft pick out of Liberty, who is competing to be Ryan Tannehill’s backup. Willis was sacked three times while playing a series into the third quarter. He was 7 of 17 for 80 yards passing with a 75.6 passer rating.

RAIDERS 15, DOLPHINS 13 » Dolphins quarterback Tua Tagovailoa played in just two series in his preseason debut as Miami fell to Las Vegas.

It was the first look at Tagovailoa in the Dolphins’ new system after the team brought in former 49ers offensive coordinator Mike McDaniel as the new head coach. Playing with most of his starters, Tagovailoa was 6 of 8 for 58 yards.

Jarrett Stidham led the Raiders on a touchdown drive on the team’s first possession and completed 7 of 10 passes for 80 yards and was sacked once. The score came on a 2-yard touchdown run by running back Zamir White, who could be the Raiders’ No. 1 option to back up starter Josh Jacobs. Jacobs did not play.

49ERS 17, VIKINGS 7 » Nate Sudfeld led a 14-play, 79yard drive for a go-ahead touchdown early in the fourth quarter and San Francisco beat Minnesota in a preseason game featuring mostly backups.

Sudfeld started and went 13 of 17 for 102 yards.