Fourth-placed Chelsea are only two points above Manchester United and Wolves in the race for a Champions League spot after they suffered a 3-2 defeat to spirited West Ham at the London Stadium last night.
Andriy Yarmolenko's 89th-minute winner rocked the Blues and left the happy Hammers three points clear of the relegation zone.
Arsenal were all smiles after smashing Norwich City 4-0 but Brendan Rodgers' Leicester City are rocking following a 2-1 defeat to Everton at Goodison Park.
The Foxes, who exited the FA Cup at the hands of Chelsea last weekend, now face a real test to hang onto their top-four spot.
Bournemouth's survival bid was dealt another blow as Newcastle crushed them 4-1 at the Vitality Stadium.