Alexis Sanchez scored a 98th-minute penalty as 10-man Arsenal recovered from conceding in injury time to claim a thrilling win over Burnley at Emirates Stadium.
According to , the Gunners' title chances appeared to have been derailed as substitute Francis Coquelin fouled Ashley Barnes in the 93rd minute and Andre Gray converted from the spot to level after Shkodran Mustafi's header had finally broken Burnley's resistance.
But, after Arsenal boss Arsene Wenger was sent to the stands for protesting referee Jon Moss' decision, Ben Mee was then penalised for a high foot on Laurent Koscielny in the Burnley area, and Sanchez deceived Clarets keeper Tom Heaton with a Panenka-style penalty.
The hosts had dominated for most of the game until Granit Xhaka's second dismissal of the season for a reckless two-footed lunge on Steven Defour, from which Burnley profited, only for Sanchez to claim all three points in impudent fashion.
Arsenal's fifth consecutive league victory at home lifts them above Liverpool and Tottenham, who both dropped points on Saturday, but they remain eight points behind leaders Chelsea, who beat Hull 2-0 on Sunday.
On Saturday, Tottenham came from two goals down to settle for a two all draw with Manchester City in the English Premier League. After a barren draw in the first half, City scored through Leroy Sane and Kelvin de Bruyne.
However Spurs found their rhythm and leveled courtesy of Delle Ali and Son Heung-Min. Elsewhere Wayne Rooney scored a late goal to help Manchester United secure a one all draw with Stoke City. The goal saw Rooney become the club's all time leading scorer with 250 goals, surpassing Bobby Charlton's record of 249 goals.
Liverpool lost 3-2 to Swansea City at Anfield.