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Chelsea emerged from the game 3-2 winners and moved up to third place, but it could have gone very differently.
Christian Benteke thought he'd found himself one on one with Kepa Arrizabalaga in the dying embers of the game before Zouma came flying in with a crunching challenge.
The Frenchman displayed incredible effort to cover centre-back partner Andreas Christensen and ensure his side kept all three points.
Chelsea fans praised the 25-year-old and his remarkable attitude following the game.
Frank Lampard's side opened the scoring after six minutes through Olivier Giroud's smart finish.
They then doubled their lead after Christian Pulisic's near post drive stunned Vicente Guaita in the Palace goal.
Less than ten minutes however, Wilfried Zaha topped that with his 30-yard screamer getting 'The Eagles' right back in it.
Roy Hodgson's side dominated early parts of the second half but a swift Chelsea counter attack saw Tammy Abraham restore their two goal cushion.
'The Blues' weren't home and dry though as Benteke netted immediately after the restart to give Palace hope.
Chelsea survived a late scare when Scott Dann's header was tipped onto the past by Arrizabalaga in injury time.
Lampard spoke to the media following last night's game and admitted his side rode their luck at times.
"We should have had the game under much more control at that point," the former England man confessed per Daily Mail.
"At 2-0 we should have carried on and controlled the game better and at 3-2 we had a lot of chances, good chances, to finish it off.
"There was slight wrong decisions made on the final pass or shot and then it invites pressure.
"Kepa made a great save and Kurt made a great tackle. In those last moments it was nerve-wracking for us."
Chelsea are now five points ahead of fifth place Manchester United, and they have Zouma to thank for that.
Featured Image Credit: Chelsea/Twitter
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