Arsenal have now lost three matches in three, making it their worst start to a domestic season since 1967.
Maxwel Cornet, who can play on either wing or left-back, will join up with the squad following the international break.
Carlo Ancelotti's Real Madrid side showed no let-up in their third consecutive game on the road, picking up all three points at the Benito Villamarín.
Manchester City made it back-to-back 5-0 home wins this season with another stellar display at the Etihad.
On paper, it is a very tight clash between Chelsea and Liverpool, but the Blues hold a slight advantage over the Reds.
Liverpool will host Chelsea at Anfield on Saturday in what will be a mouth-watering clash between teams having the same points.
The Red Devils have already made two big name signings in Jadon Sancho and Raphael Varane and reports are linking the club with a move for Cristiano Ronaldo as well.
The youngster joined FC Goa last summer on a permanent move from Shillong Lajong but will go out on loan this season.
Manchester City suspended Benjamin Mendy after Cheshire police confirmed the Frenchman has been charged with four counts of rape.
The Brazilian is a versatile football player who can play on either wing and through the middle as an attacking midfielder.