The Pittsburgh Steelers' flawless start to the NFL season came to an end as the rallying Washington Football Team made history in their shock 23-17 victory.

Pittsburgh had opened the 2020 campaign with 11 consecutive wins – the 13th team to achieve the feat in the Super Bowl era – to stand alone in the NFL.

But the Steelers were handed their first loss of the season, upstaged by Washington after the visitors used a 13-3 final quarter to reign supreme in Pittsburgh on Monday.

Washington (5-7) became the first team with a losing record to win a road game against a side with an 11-0 or better record, according to Stats Perform.

The Steelers surrendered a 14-0 lead as Washington beat Pittsburgh for the first time since 1991, snapping a six-game losing streak, per NFL Research. In 1991, Washington finished 14-2 before going on to win Super Bowl XXVI.

Alex Smith was 31 of 46 for 296 yards, a touchdown and no interceptions for Washington, who have won three consecutive games to join the New York Giants atop the NFC East.

Steelers counterpart Ben Roethlisberger finished 33-of-53 passing for 305 yards, two touchdowns and one interception as Pittsburgh's bid for an undefeated season came crashing down in a boil over.

After his touchdown pass to Diontae Johnson in the second quarter, Roethlisberger has a passing TD in all 12 games this season, joining Kansas City Chiefs quarterback Patrick Mahomes as the only players to have one-plus passing touchdown in every one of their team's games this season.