Updated: United held at home by Saints
Manchester United failed to win for a fourth successive game as they were held to a goalless draw by Southampton at Old Trafford.
On a frustrating evening for Jose Mourinho's side, they lost Romelu Lukaku early after he took a blow to the head and then saw a late goal ruled out when Paul Pogba touched in Nemanja Matic's shot from an offside position.
It was far from all one-way traffic, with David De Gea producing two fine saves.
There were boos at full-time from the United fans, who have seen their side beaten in the Carabao Cup by Bristol City and then held to draws by Leicester, Burnley and now Southampton.
United drop below Chelsea to third in the Premier League table after Antonio Conte's men became the latest to profit from Stoke's leaky defence.
The Potters have conceded more goals than any other team in the league and, with Mark Hughes naming a weakened side, Chelsea took full advantage in a 5-0 victory.
Antonio Rudiger struck very early and they were two up with less than 10 minutes on the clock thanks to Danny Drinkwater's brilliant volley.
When Pedro made it 3-0 in the 23rd minute, it seemed any score was possible, but Chelsea did not find the net again until 17...