[3] Léa Siliki made his Ligue 1 debut with Rennes on 28 January 2017 against Nantes, replacing Aldo Kalulu after 78 minutes.

[4] On 31 August 2021, Léa Siliki joined EFL Championship club Middlesbrough on loan for the duration of the 2021–22 season.

[7] On 22 July 2022, Léa Siliki signed for Primeira Liga club Estoril on a three-year contract.

[8] On 1 September 2023, Estoril announced that Léa Siliki's contract had been terminated by mutual agreement, after he had been frozen out of the squad by manager Álvaro Pacheco.

[11] In March 2022, Léa Siliki was subjected to racist abuse on Instagram after posting a celebration of Cameroon's qualification for the 2022 FIFA World Cup.