Harrison joined Chelsea from Newcastle United as a 16-year-old in August 2023 and quickly established himself in our Under-18s squad.

During his first season at Cobham, he captained the Blues to Under-17 Premier League Cup success and played a key role as the Under-18s secured the Premier League South title.

After signing his first professional contract in August 2024, the midfielder established himself as a regular for our Under-21s last season, helping the side lift the Premier League 2 title.

Harrison has also gained valuable senior experience, earning places on the men’s team bench for the Premier League trip to Manchester City and FA Cup ties against Leeds United and Leicester City during the 2024/25 campaign, before being included again for the Carabao Cup tie at Lincoln City last season.

On the international stage, Harrison has represented England youth sides through to Under-18 level.

Congratulations, Ollie!