Reggie Walsh
On 1 May 2025, Walsh made his senior debut for Chelsea against Djurgårdens IF in the 2024–25 UEFA Conference League semi-finals. He became Chelsea's third youngest ever player, only behind Ian Hamilton and Kingsley Whiffen.
A week later, on 8 May, he started the match against the same opponent, becoming Chelsea's youngest ever starter in a European competition at 16 years and 200 days, surpassing Shim Mheuka's previous record of 17 years and 137 days set earlier that season.