Lyon in 2022 Malo Gusto started playing at the
ASVF, later joining
Bourgoin-Jallieu on a one-year spell, before entering the Lyon academy as an under-14, in a move resembling the one of his elder academy fellow
Amine Gouiri. At that point he had already made a few appearance on the team sheet for
Ligue 1 games under
Rudi Garcia's management, while already having shown his talent in the
Youth League and
National 2, with the
reserve. Having made another short Ligue 1 appearance at the end of the
season, the young defender signed a new contract with Lyon in June, tying him to the club until 2024. Gusto started his first game during Lyon's opening match against
Brest on 7 August. By doing so he became the youngest defender to start a
Ligue 1 game for OL since
Samuel Umtiti. While still appearing to be behind
Léo Dubois in the right back hierarchy, Gusto still took the spotlight on several occasions under Bosz's direction, as he started games such as the 2–0
Europa League away win against
Rangers or the 2–1
Ligue 1 away loss against
Paris Saint-Germain.
Chelsea On 29 January 2023, Chelsea announced the signing of Malo Gusto on a deal until 2030. He was loaned back to Lyon until the end of the
2022–23 season. On 13 August, he made his debut for the club in a 1–1 draw against
Liverpool in Chelsea's opening match of the
2023–24 season. On 24 September, he was shown his first
red card in his career after
Jarred Gillett went to the
VAR monitor to review a late challenge he made on
Lucas Digne in their home defeat to
Aston Villa. The 2024–25 season saw Gusto deployed, alongside
Reece James, as a
midfielder as well as a full-back. On 8 November 2025, Gusto scored his first goal for Chelsea against
Wolverhampton Wanderers, ending a run of 165 games without a goal. Gusto also scored and assisted
Cole Palmer in a 2–0 victory over
Everton on 13 December. ==International career==