*Club domestic league appearances and goals, correct as of 2 November 2024 (UTC) ‡ National team caps and goals, correct as of 19:33, 1 April 2023 (UTC)
Born in Bertoua, Cameroon, Keben moved to France at the age of 2 and at 5 started playing football at Toulouse Montaudran. At the age of 10, he joined the youth academy of Toulouse and started working his way up their youth sides.[2] He was promoted to their reserves in 2021, and represented the senior side in a Coupe de France match over Aubagne. On 1 February 2022, he signed his first professional contract with Toulouse.[1] On 7 August 2022, he made his professional debut with Toulouse in a 1–1 Ligue 1 tie with OGC Nice, coming on as a substitute in the 79th minute.[3]
Watford
On 29 August 2024, Keben signed for EFL Championship club Watford on a four-year deal for an undisclosed fee.[4]