Dreadful result for Manchester United and Louis van Gaal. A top four finish is now surely out of their grasp after another insipid performance. Sunderland take a thoroughly deserved three points to move within a point of moving out of the relegation zone.
FULL TIME: Sunderland 2-1 Manchester United
Four minutes of time added on.
Rooney's excellent ball is clipped down by Martial into the path of Memphis who lashes one on goal, but it's blocked by O'Shea. United players scream for hand ball but it hit the Irishman in the stomach. The resulting corner is a complete waste of time.
Memphis twists and turns into the box before firing one on goal but Mannone makes a smart save to deny United an equaliser.
Van Gaal is responding by throwing Will Keane on for the final five minutes, replacing Morgan Schneiderlin.
Khazri swings a corner into the box which is met by a thumping header from Kone, getting it between De Gea and Martial on the post to give his side the lead.
Goal! Sunderland 2-1 Manchester United (Kone, 81)
Borthwick-Jackson again does well down the left, cutting inside his man and sliding a pass into Depay. He turns and takes the shot on, but it's a tame one easily saved by Mannone.
Rooney guides a ball in towards the far post which looks telegraphed for Smalling, but Kone gets across just in time to concede a corner. Again it comes in towards the United centre half but the ball rolls away from him and Sunderland have a goal kick.
Both sides are losing possession rather too easily at the moment, each taking a turn venturing forward before surrendering the ball. Borthwick-Jackson breaks that trend with a wonderful cross in from the left that comes off O'Shea for a corner.
Another fine save from De Gea! Kone does well to cut the ball inside Love and tries to find the top corner from an ambitious angle, but it is palmed over by the United goalkeeper.
A change for Sunderland now with Fabio Borini coming on for Defoe.
Depay does well coming in from the left and cuts a ball back for Mata who again takes it first time on his left foot, but Rodwell leaps across to make a terrific block.
Khazri takes it and keeps it on target, but De Gea reads it well and comfortably saves.
Love now concedes a free kick about 25 yards out after a clumsy challenge on Khazri.
Memphis Depay has now entered the fray, replacing Jesse Lingard.
De Gea saves United again! Cattermole springs N'Doye clear free down the inside right, cutting in to go one-on-one with the Spaniard. He hits it low and hard looking for the far bottom corner, but De Gea sticks out a boot to make another vital save for his team.
We've reached the hour mark and United haven't really tested Vito Mannone in this second half.
And now Michael Carrick is shown a yellow after crashing into M'Vila, who has been in the wars in the last few minutes.
Juan Mata is now booked for a trip on Yann M'Vila.
Donald Love was culpable for that Sunderland chance a moment ago, but he's shown his ability going forward, making a great overlapping run before clipping the ball over his man and playing a pass into the feet of Lingard. The United winger made a great run to get into the position, but takes far too long to sort his feet out and loses the ball.
What a chance for Sunderland! Cattermole threads an excellent ball through for van Aanholt who knocks a pass across goal for Defoe, but Daley Blind makes a vital block to knock the ball out for a corner.
O'Shea and Rooney were able to share a laugh after that incident, but it looked like a clear hand ball from the United skipper, who was booked just minutes before that.