THEY did it last year but can Crystal Palace repeat the trick again, when they take on Chelsea at Selhurst Park tomorrow?
We certainly think so - and here's five reasons why...
1. Wing wizards
Branislav Ivanovic and the one with the long name are great full-backs, but they won't have been tested by better wingers than Jason Puncheon and Yannick Bolasie so far this season. With pace and power and to burn - and Wilfried Zaha in reserve - these speed demons could have Chelsea fans pining for Ashley Cole come 5pm on Saturday.
2. Return of the Jedi
He's never been away, in truth, but don't let get in the way of a predictable pun. Jedinak thrives in games like this, and is a one-man flair-spoiling, tackle-loving midfield machine. Cesc Fabregas might be Chelsea's ringmaster but he can be tamed by Palace's lion. Stop the Spaniard - and you might just stop Chelsea.
3. Costa crocked
Diego Costa has scored 192 goals in six games since signing for Chelsea - but it's likely he won't be facing Palace. Loic Remy is a decent replacement but, let's be honest, he's no Diego.
4. The ball boys and girls
If you recall last season's fixture those lads and lasses collecting the ball from the sidelines played a vital role in the victory, getting under the Matalan-coated one's skin in a way messrs Wenger or Pellegrini could only dream of. Coupled with Eden Hazard's 'previous' in this regard, and those kids could be just as crucial as Julian Speroni's saves or Yannick Bolasie's rampaging runs.
5. Neil Warnock isn't Arsene Wenger
The Gunners boss has an embarrassing and shameful record against Mourinho, failing to beat him in something like 342 attempts. Based on this, the pressure is off Neil Warnock, He really cannot do any worse than Teflon Arsene after all, can he?
