The following is from WWE.com:
LAS VEGAS – In a stunning upset, Brock Lesnar became the first man to have captured both the WWE Championship and the UFC Heavyweight Championship when he defeated UFC fan favorite Randy "The Natural" Couture on Saturday night in Sin City.
Lesnar, dubbed "The Next Big Thing" upon his arrival in WWE, earned the moniker and his first WWE Championship in 2002 after besting The Rock at SummerSlam. Thanks in large part to the backing of the WWE Universe, the former college wrestling phenomenon went on to regain the title twice, both times against Kurt Angle, once at WrestleMania in 2003 and then six months later on SmackDown.
For Lesnar, the road to UFC gold proved surprisingly short. Within roughly six months, the former WWE Superstar climbed to the top of the ultimate fighting heap, capping his ascent with the upset victory over Couture.
Critics have noted that many of the fights on the UFC pay-per-view ended in the first round, leaving UFC producers scrambling to fill the three-hour event with content. The dearth of hearty competition left many viewers to watch less prestigious under-card fights and only served to bolster claims that UFC pay-per-view events can often be a "crap shoot" in regards to filling the full three hours.
For his part, Lesnar took the encouragment of the WWE Universe and the hard lessons forged during his fiery time at WWE and showed UFC and the world why he is not only a man of mettle but also a former three-time WWE Champion.