Drake denies Chris Brown brawl over Rihanna boasts

US rapper Drake has denied any involvement in the supposed bar brawl that left singer Chris Brown sporting a gash to his chin earlier this week.

Chris Brown has reportedly been helping police with enquiries into the incident, which was said to have begun when Drake boasted to Brown about having sex with Brown's ex, Rihanna.

"Drake did not participate in any wrongdoing of any kind last night at W.i.P," says Drake's spokesperson in an official statement. "He was on his way out of the club when the altercation began. He did not engage in any activity which resulted in injury to person or damage to property."

Onlookers at the nightclub have told how the brawl was between the US stars' entourages, rather than the stars themselves. With one club-goer telling US website TMZ: "Chris and Drake never got in each other's faces. It was entourage versus entourage, never Drake versus Chris."