Las Vegas – UFC 91 takes place on Saturday night, featuring a heavyweight title bout between current UFC heavyweight champion Randy Couture and challenger Brock Lesnar.

Also highlighting the card is a showdown to name the No. 1 contender in the UFC lightweight division as Kenny Florian and Joe Stevenson battle it out for a shot at B.J. Penn's title.

MMAWeekly.com's Ken Pishna was on hand at the MGM Grand Garden Arena in Las Vegas on Friday to capture the UFC 91 weigh-ins in this exclusive MMAWeekly.com UFC 91 Photo Gallery.

OFFICIAL WEIGH-IN RESULTS:

-Randy Couture (220) vs. Brock Lesnar (265)

-Joe Stevenson (156) vs. Kenny Florian (156)

-Gabriel Gonzaga (256) vs. Josh Hendricks (238)

-Demian Maia (185) vs. Nathan Quarry (185)

-Dustin Hazelett (170) vs. Tamdan McCrory (170)

-Jorge Gurgel (155) vs. Aaron Riley (156)

-Jeremy Stephens (155) vs. Rafael dos Anjos (155)

-Alvin Robinson (155) vs. Mark Bocek (155)

-Ryan Thomas (170) vs. Matt Brown (171)

Exclusive UFC 91 Photo Gallery

UFC 91 Odds Brought to you by BetUs.Com:

Randy Couture (-105) vs. Brock Lesnar (-125)

Kenny Florian (-185) vs. Joe Stevenson (+145)

Check out all the odds for UFC 91 at BetUs.com.