El Hadji Diouf says his time at the Stadium of Light was "sh***y" and claims that Ferdinand was "the number one w****r".
Former Sunderland flop El Hadji Diouf has launched an expletive-laden rant about his time at the Stadium of Light, saving particularly choice words for ex-Black Cat Anton Ferdinand, in an interview with French magazine So Foot.
The Senegalese spent six unhappy months in the North East, after signing on a four-year deal for around £2.5 million in 2008, failing to score in any of his 16 appearances with the club before leaving for Blackburn Rovers.
The controversial 35-year-old, who also launched an extraordinary tirade against Liverpool legends Jamie Carragher and Steven Gerrard in an interview with the magazine, clearly had some lingering ill-feeling to get off his chest.
He told So Foot that the atmosphere at Sunderland during his time at the club was terrible, and revealed that he fought on numerous occasions with Ferdinand, who appears to be public enemy number one for Diouf from his days at the Stadium of Light.
Diouf said:"Inevitably, [Sunderland] was difficult in terms of atmosphere. I spent six s****y months there. We were not a team. There were little w****rs in the group who thought they were the best but they were crap. Anton, he was the number one w****r."
The former Liverpool and Bolton Wanderers man also made the shocking claim that he and Ferdinand confronted each other in a Manchester nightclub in an exchange which ended with Diouf threatening the current Reading defender and his friends with a broken glass.
He added: "I ignored him; that must have bothered him, so he came over to test me. I'm a man, I can defend myself. If there is a crazy guy who wants to take me on, I'll show him that I'm crazier than him.
"The first of his friends who came too close to me, he ended up running away. Since I was drinking champagne, I broke my glass and I attacked them… I came out unscathed, and since then, the club now uses plastic glasses."
Diouf attracted controversy from the media and players during his career in England and Scotland for spitting at fans and opposing players, being involved in confrontations and generally having a poor attitude.
The 35-year-old was most recently playing for Sabah in Malaysia after leaving Leeds United in 2014.