Marcelo Vieira da Silva Júnior
After Roberto Martinez hinted he would go for "power" to combat Brazil's stars, he has opted to start Marouane Fellaini and Nacer Chadli.
After struggling with a back injury since Brazil's final group game, Marcelo could return for the quarter-final against Belgium on Friday.
After his build-up to Russia 2018 was interrupted by injury, Neymar has resumed his "top performance", says Brazil head coach Tite.
A back injury forced him off early against Serbia but Marcelo trained with his Brazil team-mates on Sunday ahead of their clash with Mexico.
The back spasms that forced Marcelo out of Brazil's win over Serbia may have been caused by a hotel mattress, according to the team doctor.
Brazil will meet Mexico in the last 16 of the World Cup after they secured top spot in Group E and sent Serbia packing from Russia.
Brazil's medical staff helped Marcelo back to the dressing room after just 10 minutes of their Group E meeting with Serbia.
Marcelo will be immensely proud to wear the armband when Brazil begin their World Cup campaign against Switzerland in Rostov-on-Don.
Brazil midfielder Fred hurt his ankle during Thursday's training session but Marcelo is not too concerned.
Marcelo said Cristiano Ronaldo will not determine whether Neymar will move to Real Madrid or not.