Yves Bissouma has been arrested on suspicion of sexual assault.
Bissouma was one of two men taken into custody following an incident at a nightclub on the seafront in the early hours of Wednesday morning.
Brighton said: ‘Brighton & Hove Albion are aware that one of its players is assisting police with the investigation of an alleged offence.
‘The matters is subject to a legal process and the club is therefore unable to make further comment at this time.’
A statement from Sussex Police confirmed: ‘Two men have been arrested after a woman reported being sexually assaulted at a venue in Brighton, in the early hours of Wednesday (06 October).
‘A man in his 40’s and a man in his 20’s, both from Brighton, were arrested on suspicion of sexual assault and remain in police custody at this time.
‘The victim is receiving specialist support from officers.’
According to reports, the player had been ‘partying with a friend’ at The Arch bar in Brighton in the early hours of Wednesday when he was arrested.
The club was packed — it was a popular student night, especially with freshers in town,’ one insider reportedly said.
They added: ‘People were starstruck to see him in the club. They were even more shocked to see him later being led away in handcuffs outside the club.’