Chelsea suffered a narrow 1-0 defeat against Sunderland at the Stadium of Light, with Enzo Le Fee converting a first-half penalty. The match was marred by contentious refereeing decisions, including a foul on Cole Palmer just outside the box that Chelsea believed should have been a penalty, and a spot-kick awarded to Sunderland after Brian Brobbey went down under a challenge from Levi Colwill. Manager Xabi Alonso made several changes, introducing Jordan Henderson and Estevao Willian, while Moises Caicedo and Romeo Lavia featured in midfield. Despite late pressure and a missed header from substitute Danny Welbeck, Chelsea could not find an equalizer. The result leaves Chelsea in fifth place in the Premier League table.