Daniel Tosh lets Manny Pacquiao punch him in the face

(CBS) Daniel Tosh did what Floyd Mayweather hasn't done. He got in the ring with Manny Pacquiao.

(Watch the video below.)

"I didn't think this 140-lb. adorable little Filipino could do any damage to this flawless face," says Tosh in the opening to the clip in which he lets Pacquiao, the eight-division boxing champion, give him a right to the jaw.

The piece, which appeared on Tosh's show "Tosh.0," shows the comedian being his usual blustery self until the moment he signs some kind of waiver (presumably saying he and his family can't sue if there are any horrible physical aftereffects of letting a professional boxer whack you in the cheek) and then admits he's "scared s--tless."

It all happens quickly. Tosh sees the punch coming and grimaces just before Pacquiao's right lands with a slapping sound against Tosh's face.

It looks like it hurts - a lot - and chances are Pacquiao didn't even hit Tosh with full force (admittedly, that's a guess). Note: There are a lot of four-letter words in the video.