Plenty of combat sports athletes have found their way into professional wrestling, including Olympians like Kurt Angle and Ronda Rousey and UFC champions like Ken Shamrock and Dan Severn. However, there are also pro wrestlers who turned to MMA for a new career, or even just a quick buck.

Brock Lesnar is the most successful WWE wrestler turned mixed martial artist. Using his NCAA college wrestling skills, Lesnar fought his way into the UFC and eventually beat the legendary Randy Couture to win the UFC Heavyweight Championship. Lesnar even defended the strap twice before losing to heavyweight icon Cain Velasquez.

A MMA career that didn't go so well belongs to Alberto Del Rio, who went by the name of Dos Caras Jr. in an ill-fated Pride FC bout against absolute killer Mirko Cro Cop. With no professional mixed martial arts experience, Del Rio was essentially a lamb to slaughter, getting viciously knocked out via head kick in the first round.

Attitude Era wrestler Giant Silva didn't fare much better in MMA, accumulating a record of 2-6 with four TKO losses in Pride. The seven-footer did however notch two victories via kimura armbar.

Check out this compilation of WWE wrestlers trying their hand at MMA below.

10 Fastest Championship Matches in WWE History

A lightning fast championship match can be shocking, both for the right and the wrong reasons. Some of the quickest matches in WWE history have caused Superstars like Daniel Bryan to be catapulted to the top of the card, while others like Kofi Kingston had short moments of glory snatched away from them.

For this list, we're not counting Money in the Bank cash-ins like Dean Ambrose pinning Seth Rollins in nine seconds or Jack Swagger taking Chris Jericho's title in eight seconds. These are mostly traditional matches, minus one Money in the Bank precursor where Trish Stratus pulled the biggest heel move of her career.

Of course this is wrestling, so cheating is 100-percent legal for this list. If you happened to low blow your opponent just moments before the match began, only for the bell to ring thanks to some hapless referee -- that's a'okay with us!

Whether it be an iconic retirement match at Wrestlemania or a bizarre untelevised moment between a veteran and a rising star at Madison Square Garden, these are officially the 10 fastest championship matches in the history of WWE. Get out your stopwatches if you don't believe us!

Gallery Credit: WWE