Terminator 3: RISE OF THE MACHINES beauty Kristanna Loken is warning her pal Michelle Rodriguez never to start a fight with her - because she's certain would win.

While Rodriguez is often regarded as one of Hollywood's tough girls, her BLOODRAYNE co-star insists she could easily defeat her in a brawl.

She tells men's magazine FHM, "I love Michelle, but she's little; it wouldn't be much of a fight.

"She is quick but I'm bigger. I'd be pretty confident that it wouldn't last long."