The youngsters who could make an impact on this big tie.
The most talked about League Cup tie is the Arsenal v Chelsea match as Arsene Wenger attempts to beat Jose Mourinho for the first time.
As has become traditional in this competition, despite the grandeur of the occasion both teams are likely to field a number of youngsters.
Here are five that are worth watching out for in the game.
5. Tomas Kalas – Chelsea
Whether the centre-back gets a chance or not in this clash is a difficult one to call, with Mourinho yet to play the 20-year-old since returning from an impressive loan spell with Vitesse Arnhem.
However, as a senior international for the Czech Republic side Kalas is certainly a realistic option.