Here's a video that could finally set up a boxing superfight EVERYONE wants -- with Vasyl Lomachenko calling out Gervonta "Tank" Davis right on camera.
"Let's do this! Let's do this," Loma said to TMZ Sports ... knowing full well there's a TON of interest in seeing Floyd Mayweather's prodigy step in the ring with "High Tech."
Lomachenko is 13-1 -- and has earned the nickname "No Mas Chenko" because he's made guys straight up quit in the ring.
Davis is 21-0 and he's the reigning WBA super featherweight champ.