Arsenal moved level on points with Premier League leaders Manchester City courtesy of a hard-fought victory over beleaguered Burnley.
The Gunners had struggled to break down a disciplined Clarets side for much of the first half but broke the visitors' resistance on the stroke of half-time when Leandro Trossard bravely nodded in at the far post for Arsenal's 1,000th goal at Emirates Stadium.
Burnley equalised eight minutes into the second half when Josh Brownhill's low shot was deflected into the net by Gabriel, but the visitors were level for only three minutes before William Saliba headed in Trossard's corner from point-blank range.