Martin Kelly's powerful strike sealed a 1-0 win for Crystal Palace against Tottenham Hotspur in the fifth round of the FA Cup on Sunday.
Palace took the lead just before the interval at White Hart Lane, when Kelly thumped a shot into the top corner after dazzling skill from winger Wilfried Zaha.
Dele Alli almost put the home team ahead in the opening moments but Yohan Cabaye blocked his goal-bound header on the line and Alli later came within inches of scoring when his shot hit both posts.
Palace, who have never won the FA Cup, progress to the quarter-finals after beating Premier League opposition for the third successive round, having previously knocked out Southampton and Stoke City.
Spurs manager Mauricio Pochettino made seven changes from the side that drew 1-1 against Fiorentina in the Europa League on Thursday, with Joshua Onomah and Nabil Bentaleb handed starts.
Alan Pardew welcomed back Yannick Bolasie, Joe Ledley and Dwight Gayle from injury and former Spurs striker Emmanuel Adebayor made his first return to White Hart Lane.
Alli almost gave Tottenham a dream start in the third minute but his diving header was cleared off the line by Cabaye, with Onomah putting the rebound over the crossbar.
Palace appealed for a penalty after five minutes when a Jordon Mutch cross bounced off Nabil Bentaleb's chest on to his arm, but referee Craig Pawson was unmoved.
Michel Vorm then had to scramble Kyle Walker's misjudged header off the line before Harry Kane's volley deflected off Damien Delaney and wide of the post.
The hosts came within inches of taking the lead after 22 minutes when Son Heung-min danced into the box. Alli collected the loose ball and placed a shot across Wayne Hennessey, but the strike hit the post and rolled along the line to strike the woodwork again.
Hennessey kept out Kane's 25-yard curling free-kick after 41 minutes and the visitors then took the lead against the run of play on the stroke of half-time.
Superb play from Zaha created an opening for Kelly and the right-back thundered a powerful strike into the top corner, leaving Vorm helpless at his near post.
A battle between Kane and Hennessey was developing, with the Palace goalkeeping coming out on top again after 50 minutes, the Wales international making a fingertip save to turn the striker's shot wide.
Kelly blocked Onomah's effort on the line and Hennessey saved from substitute Christian Eriksen after 62 minutes as Pochettino's men pushed for an equaliser.
With six minutes to go, Scott Dann blocked Onomah's shot, before Palace had a second goal correctly ruled out for offside when Connor Wickham turned in Bolasie's cross.
Palace were without a win in their last nine league matches but Pardew's side held on to defy the form book and pull off an impressive cup victory.
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