Chelsea manager Frank Lampard made a last minute change - which saw him bring in academy goalkeeper Ethan Wady for their clash with Premier League champions Manchester City.
Lampard made the change to replace Joao Felix - as the Portuguese forward was ruled out before the match began.
The Blues started Kepa Arrizabalaga in net and have Edouard Mendy on the bench, but Wady was called in as the extra option.
Wady, the 21-year-old American from San Diego, California, has been with Chelsea since the 2017-18 season after his family relocated to England.