A successful second-half rally has helped Washington defeat the Pittsburgh Steelers 23-17 and crush the home side's hopes of an undefeated regular season.
Pittsburgh were leading through the game – including being up 14-0 just before half-time – until Dustin Hopkins's 45-yard field goal with two minutes left in the match put Washington up 20-17.
Hopkins came up with the goods again with 17 seconds remaining as he booted home another 45-yarder, helping his side to improve to 5-7 and ensuring the 11-1 Steelers will need to win on Sunday in upstate New York to qualify for the post-season.
Buffalo quarterback Josh Allen had a career night as he went 32 of 40 throws for 375 yards, four touchdowns and no interceptions.
The loss means San Francisco are out of a realistic play-off contention and could finish their campaign with a losing record, while the Bills are 9-3 and back on top of the AFC East.