Chelsea manager Antonio Conte could field teenager Ethan Ampadu in this evening's EFL Cup match against Nottingham Forest after naming the youngster in his squad.
If the 17-year-old features at Stamford Bridge this evening, then he will became one of the 10 youngest players of all time to represent the West London outfit.
Ian Hamilton remains the youngest ever to play for Chelsea, having made his first-team debut in 1967 at the age of 16 years and 138 days.
Ampadu joined the Blues after rejecting Arsenal in the summer, but the transfer is not completely finalised due to his former club Exeter City demanding £3m in compensation.
Chelsea head into the fixture on the back of a five-game unbeaten run in all competitions.