Arsenal's Premier League hopes ended on Sunday when Tamir Cohen scored a last-minute header to give Bolton Wanderers a 2-1 victory that left them nine points behind Manchester United with four games to play.
Bolton were unrecognisable from the team thrashed 5-0 by Stoke City in the FA Cup semi-finals a week ago and deservedly led 1-0 at halftime thanks to a header from on-loan Chelsea striker Daniel Sturridge.
Arsenal goalkeeper Wojciech Szczesny saved a weak Kevin Davies penalty at the start of the second half and moments later Robin van Persie shot home the equaliser from the edge of the box.
Arsenal piled on the pressure but were caught out when Cohen, on the pitch only for five minutes, powerfully headed home a corner.
Manchester United, who beat Everton 1-0 on Saturday and visit Arsenal next Sunday, lead the way with 73 points.
Chelsea, 3-0 winners over West Ham United, are second on 67, with Arsenal on 64.
Manchester City, who visit Blackburn Rovers on Monday, are fourth on 56 with Tottenham Hotspur on 55.