*Club domestic league appearances and goals, correct as of 17:32, 24 November 2024 (UTC) ‡ National team caps and goals, correct as of 23:28, 11 July 2024 (UTC)
On 1 August 2023, Ugochukwu signed for Chelsea on a seven-year contract, with a club option for an additional year.[5] The transfer fee paid to Rennes was reported as up to £23.1 million.[6] On 13 August, he made his debut for the club, coming on as a substitute, in a 1–1 draw against Liverpool in the Premier League.[7]
Southampton (loan)
On 16 August 2024, Ugochukwu joined English side Southampton on a season-long loan.[8] He made his debut for the club on 28 August 2024 in a 3–5 away victory against Cardiff City in the EFL Cup.[9]