Dana White says Urijah Faber's comeback is REAL -- telling TMZ Sports the 40-year-old's victory this weekend was legitimately impressive ... and he ain't ruling out a fight with Henry Cejudo.
Faber hadn't fought in 3 years when he came out of retirement to take on Ricky Simon on Saturday -- and Faber destroyed him in 46 seconds!
"He looked good man," White told TMZ Sports.
"Obviously, not just who he beat but HOW he beat him and how he did it.