Cole Palmer did not play any role in Chelsea's clash at West Ham after suffering an injury in the warm-up.
Sky Sports reported manager Enzo Maresca had said Palmer, who was due to start, 'felt something' and the England star was taken out of the squad as a precaution.
Estevao, the 18-year-old starlet, was given his full debut to replace Palmer and played a crucial role in Chelsea's third goal as he drove forward before squaring for Enzo Fernandez to tap home from close range.
Footage showed Palmer leave the pitch at the London Stadium before the end of Chelsea's warm-up.