Arsenal welcome Chelsea to the Emirates for the first leg of their League Cup semi-final clash on Wednesday.
Both sides have had relatively difficult run-ins to reach the last four but the Blues have had a better start to the Premier League season than their London counterparts.
Here, Sportsmail selects a composite XI from both sides ahead of the eagerly anticipated semi-final tie.
Sportsmail's composite XI before Arsene Wenger's Arsenal clash with Antonio Conte's Chelsea
Thibaut Courtois (Chelsea)
It's no real surprise that Thibaut Courtois gets the nod in goal. Make no mistake, his Arsenal counterpart — and predecessor at Stamford Bridge — Petr Cech is a classy performer.
But the Belgian has proven himself time and again to be among the top handful of shot-stoppers currently plying his trade in world football.
Thibaut Courtois has proven himself to be among the top handful of shot-stoppers in the world
Right back – Hector Bellerin (Arsenal)
Hector Bellerin has made huge strides since last season, which was a poor one by his standards, and is beginning to get back to top form.
The Spaniard would also add some much-needed pace down the flanks.
Centre back – Cesar Azpilicueta (Chelsea)
Mr Reliable at the Bridge, Cesar Azpilicueta would make it into most, if not all, Premier League sides on the right-hand side of defence.
The Spaniard has made the shift into the centre of defence and is always a solid option, which means the Blues man is a shoo-in.
Centre back – Laurent Koscielny (Arsenal)
Laurent Koscielny has steadily built his reputation since moving to north London in 2010 and is now one of the finest in England's top flight.
Arsenal boss Arsene Wenger, however, has said he has only a '30 per cent' chance of playing against Chelsea after limping off against West Brom on New Year's Day.
Laurent Koscielny has been consisten and reliable for Wenger's side since moving in 2010
Left Back – Marcos Alonso (Chelsea)
A surprise package in Chelsea's title-winning campaign last season, Marcos Alonso makes the cut at right back.
Arsenal counterpart Sead Kolasinac has also been ruled out with injury for two weeks after he was