Two Welsh rugby internationals are among four people arrested after an incident in Cardiff hours after Wales' weekend Twickenham victory.
Cardiff Blues winger Tom James, 24, and fly-half Ceri Sweeney, 32, were arrested and bailed after a man was assaulted early on Sunday.
Police said a 26-year-old man needed stitches for a facial wound after an incident in Greyfriars Place.
Blues chief executive Richard Holland said: "There was an incident."
South Wales Police have not named the players, but say two men aged 24 and two other men aged 27 and 32 were arrested.
Neither Sweeney, who played the last of his 35 Tests in 2007, or James, who has won 10 caps since 2007, are part of the current Wales squad competing in the Six Nations Championship.
BBC Wales understands the alleged assault took place outside the Tiger Tiger club.
Blues chief executive Holland added: "There was an incident but until the police have concluded formalities from their side there is no statement to make on it."
Police said a second man, aged 27, was also assaulted at around 01:20 GMT.