LONDON — The most unpredictable Premier League season in years provided more surprises Saturday when Chelsea gave up a 90th-minute winner at Stoke and beleaguered defending champion Manchester United lost to Newcastle for its second home defeat in four days.
With Manchester City held to a 1-1 draw at Southampton, Liverpool was able to capitalize. It routed West Ham 4-1 to go to second place, with Luis Suarez following his spectacular four-goal game by scoring again at Anfield.
Arsenal kept its four-point lead going into Sunday's game against Everton. Chelsea's 3-2 loss at Stoke, sealed by Oussama Assaidi's late strike, saw Jose Mourinho's club drop to third place on goal difference behind Liverpool.
United's flimsy hopes of retaining the title took another step back with a 1-0 loss to Newcastle at Old Trafford. The champions are in ninth place — 12 points behind Arsenal — and manager David Moyes is under increasing scrutiny in his first season as Alex Ferguson's successor.
There was a minute's applause before each Premier League game in honor of former South Africa president Nelson Mandela, who died Thursday at 95.