Sunderland gave their Premier League survival hopes a huge boost as they upset Manchester United 2-1 on Saturday to pile the pressure on United manager Louis van Gaal.
Lamine Kone headed the winner, off the body of goalkeeper David De Gea, eight minutes from time to lift Sunderland to third-bottom, one point behind fourth-bottom Newcastle.
Southampton climbed to sixth after a 1-0 win at Swansea City while West Ham United are seventh after recovering from 2-0 down to draw 2-2 at Norwich City, who remain in the bottom three.
Wahbi Khazri put Sunderland ahead after three minutes when his free-kick crept into the far corner.
Anthony Martial equalized six minutes before half-time after a good shot from Juan Mata was deflected into his path.
But Sunderland defended superbly and continued to attack and Kone won it for them to clinch victory and move them to within one point of Newcastle, who were due to play champions Chelsea in the day's late match.
"We played well against Manchester City and didn't get anything, we didn't play well against Liverpool but got a point and today I thought we deserved the win," Sunderland captain and former United defender John O'Shea told BT Sport.
"It's a good step for us today. We showed our quality against a team like Manchester United at home. Ultimately it will be down to ourselves, but if we can defend like that and attack like that we'll be OK."
United remain fifth, six points off the top four and facing an uphill battle to qualify for the Champions League.
"I don't think we created enough chances, we weren't aggressive enough and it's cost us, not defending set-pieces, so a disappointing result for us," United captain Wayne Rooney said.
Rooney admitted their top-four chances were dwindling.
"It'll be difficult to qualify for the Champions League in the top four now. So it's a sad day for us and we have to somehow move on."
Shane Long scored the only goal as Southampton moved above West Ham into sixth thanks to a 1-0 win at Swansea.
West Ham needed two goals in two minutes from Dimitri Payet and Mark Noble to salvage a 2-2 draw at Norwich.
Watford are eighth after winning 2-1 at Crystal Palace while Stoke City moved into the top half after a 3-1 win at Bournemouth and West Brom ended a five-match winless streak with a surprise 1-0 victory at Everton.