Manchester City footballer Ousmane Dabo has reported team-mate Joey Barton to police over an alleged attack.
Dabo received hospital treatment (picture from MEN Syndication)
The 30-year-old went to hospital for treatment for injuries to his eye, nose and lip after an incident at the club's training ground on Tuesday.
It is understood that Dabo has asked police to press charges.
Greater Manchester Police (GMP) have confirmed that the incident has been reported to them. Barton has been suspended by the club.
A spokeswoman said: "Greater Manchester Police has received a report from a 30-year-old man that he was assaulted.
"Inquiries are ongoing."
Barton made the England squad for a recent friendly against Spain
Barton has been suspended for the rest of the season by Manchester City and reports suggest he will be sold in the summer.
It means the midfielder, who was recently called up to the England squad, missed Saturday's derby against Manchester United.
Barton is no stranger to controversy and has been involved in a number of headline-grabbing incidents during his City career.
In December 2004 he was fined six weeks' wages after he stubbed a cigar into the eye of a younger team-mate at the club's Christmas party.
At a tournament in Bangkok in July 2005 Barton was involved in an altercation with his team-mate Richard Dunne and a 15-year-old Everton fan. He was later fined eight weeks' wages.
In March 2007, Barton was arrested on suspicion of assault and criminal damage in an incident involving a taxi driver in Liverpool.