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An incredible comeback and what now for Sunderland?
Heartbreak for David Moyes and Sunderland.
Javier Manquillo needlessly gives away a free-kick by the corner flag and Lee Chung-yong floats it on to the head of Christian Benteke.
Jason Puncheon makes way for Lee Chung-yong.
We're into four minutes of stoppage time here.
Can either side find a winner?
Close from Andros Townsend.
Crystal Palace break quickly on the counter and the England international sends his shot wide after cutting in from the right of the area.
Sunderland bring on Victor Anichebe for Adnan Januzaj, and Paddy McNair for Lee Cattermole.
A Sunderland corner comes out to Adnan Januzaj 20 yards out but the Belgian cannot keep his shot down.
Sunderland with some neat build-up play on the edge of the area but they eventually pass the ball out of play.
The hosts must be rattled after leading 2-0.
That is some impact from Zeki Fryers.
The full-back beats his man on the left wing and swings in a superb cross that James McArthur powerfully heads home.
Could Crystal Palace win this from 2-0 down?
Crystal Palace take off Martin Kelly for Zeki Fryers.
Crystal Palace midfielder Jason Puncheon is booked for a foul on Duncan Watmore.
The Eagles take off Yohan Cabaye for Connor Wickham.
Jermain Defoe hits a shot over the bar from 20 yards.
He will be chasing that hat-trick for these next 20 minutes.
Former Spurs striker on Final Score
You cannot give Jermain Defoe opportunities in the box, because he finishes them. This has turned into something for a nightmare for Crystal Palace, though that Joe Ledley strike makes it game on.
Sunderland have a free-kick on the left after a foul by Jason Puncheon on Patrick van Aanholt.
The Dutchman sends the set-piece in but it's a poor ball.
Crystal Palace go straight on the offensive and they're back in this.
The ball is thumped forward and falls for Joe Ledley 20 yards out. His low shot takes a big deflection off Patrick van Aanholt.
Could well be an own goal by the Dutchman.
Jermain Defoe scores his second of the game with a well-taken shot from 12 yards after Crystal Palace fail to deal with a series of Sunderland attacks.
The game is finally starting to open up now.
Duncan Watmore runs after his own attempted throughball for Jermain Defoe and gets there just before Palace keeper Steve Mandanda.
However, Palace defenders manage to scramble the ball away.
From the Sunderland free-kick, Crystal Palace almost level.
Damien Delaney clears the free-kick away and Palace race down the field with Jason Puncheon eventually testing Jordan Pickford from 15 yards.