British boxer Dereck Chisora Ukrainian boxer Vladimir Klitschko
British boxer Dereck Chisora (right) spits water in the face of Ukrainian boxer Vladimir Klitschko. Reuters

British heavyweight Dereck Chisora has been shamed again by revelations of out-of-ring violence after his ex-partner said that he beat her black and blue.

Yalda Kontratchy, 25, dated the boxer, nicknamed "Del-Boy", for seven months. She said she recognised the "crazy look" he had in his eyes when he brawled with David Haye at the post-fight press conference on 19 February.

She added: "It was the same as the night he attacked me."

She revealed details of the 2010 attack on her only after the post-match punch-up between Chisora and Haye.

Iran-born Kontratchy said she was asleep when her partner attacked after he found a message from a friend who called her "babe".

"What's this message?" she said he screamed at her before grabbing her by the arms.

"I thought he was going to kill me," she said. "He slapped me across the face, then put me face-down on the bed and started slapping all over my back and my bum.

"I didn't know what to do - he's so strong. I was terrified. My face was swollen and my whole body hurt."

The police were called and Kontratchy broke off the relationship.

Chisora avoided a custodial sentence and was given a suspended three month sentence and 150 hours' community service and put on probation. He was also ordered to attend domestic violence counselling sessions.

Haye said of Chisora: "He needs to check into an anger management clinic before he kills someone."

Kontratchy saw the attack on Haye coming, she said. "I thought, 'Oh my God, it's coming'.

"The way he walked over to him - he had the same look. I can't explain it."