FYI, Shevchenko lost to Nunes by unanimous decision back in March -- but Valentina says she's at the top of her game now ... and is champing at the bit to get the current UFC women's bantamweight champion back in the Octagon.
"I know it will be a very difficult fight for her," Shevchenko said ... "I want it. I want it very much."
She also pitches her case to UFC honcho Dana White about why she should get the rematch.
There's more ... we also asked about a possible matchup with Ronda -- Valentina makes it clear, she ain't scared of ANYONE!