Chelsea midfielder Romeo Lavia is a doubt for Tuesday's friendly clash with Australian side Western Sydney Wanderers.
The Belgian is no stranger to injury issues, but due to a knock, Blues boss Xabi Alonso may opt to leave him out of the starting lineup.
A number of younger players have joined the Londoners in Australia, and it would not be surprising to see the likes of Mahdi Nicoll-Jazuli and Reggie Watson afforded starts in the middle of the pitch.
Alonso has used a back three in the past, and if he opts to start three centre-backs on Tuesday, then fans may see a trio of Levi Colwill, Wesley Fofana and Tayo Subuloye feature together.
Goalkeeper Filip Jorgensen is a candidate to start between the posts, while Marco Palestra and Ryan Kavuma-McQueen may appear as wing-backs.
Cole Palmer did not make Thomas Tuchel's England squad for the World Cup, and that means he should be ready to play a considerable role in attack for the Londoners.
Jamie Bynoe-Gittens is likely to join Palmer, and the two will be expected to support striker Joao Pedro, who was left out of Brazil's World Cup squad.
Chelsea possible starting lineup:
Jorgensen; Fofana, Subuloye, Colwill; Palestra, Nicoll-Jazuli, Watson, Kavuma-McQueen; Palmer, Gittens; Pedro