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The woman who claims she was attacked by boxing superstar Sergey Kovalev has now filed a lawsuit against the Russian ... claiming the 35-year-old also brutalized her dog.
It's all in court docs obtained by TMZ Sports ... Jamie Frontz (who has identified herself publicly) claims she met Sergey at the grand opening of a boxing gym in Big Bear, CA back in June.
Frontz - Model - Actress - Claims - Sergey
Frontz -- a model and actress -- claims Sergey and a friend followed her home from the party and Kovalev aggressively tried to have sex with her.
"At one point, Kovalev pinned Jamie to the couch, leaning over her with his hands on either side of her shoulders, such that she could not move away."
Jamie - Dog - Danger - Kovalev - Dog
Jamie claims her dog sensed the danger and tried to intervene -- but Kovalev shoved the dog away and then kicked it in the chest.
While tending to her dog, Jamie claims, "Kovalev turned to [her] and punched her with full force directly in the face one time with a closed...
(Excerpt) Read more at: TMZ
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