Swansea scored twice in less than three minutes to rally to a 2-1 victory over Arsenal in the Premier League, with substitute Bafetimbi Gomis grabbing the winner with one of his first touches.
A listless game played in driving rain in south Wales was illuminated by Alexis Sanchez's close-range finish in the 63rd minute, the Chile forward scoring for the fourth straight league game.
Gylfi Sigurdsson curled home a stunning free kick to equalise for Swansea in the 75th and Gomis completed the hosts' recovery by rising high to head home a pin-point cross from Jefferson Montero, barely 90 seconds after his introduction.
The defeat ends a miserable week for Arsenal after it surrendered a 3-0 lead to draw 3-3 against Anderlecht in the Champions League on Tuesday.
Sunderland 1 - 1 Everton
Tottenham 1 - 2 Stoke
West Brom 0 - 2 Newcastle