An American called Khalil Rountree Jr. just beat his UFC opponent like he was owed money

• Khalil Rountree Jr. beat his UFC opponent Saturday like he was owed money.
• He then delivered a rousing post-fight victory speech about how he overcome depression.

LAS VEGAS — Khalil Rountree Jr. gave a rousing speech about overcoming depression after scoring the most sickeningly wonderful knockout win Saturday against Karl Roberson.

"I don't want to wait until I'm a champion to tell my story and where I come from being a 300-pound kid on the brink of suicide," Rountree said after his second-round win during the UFC Fight Night event at the Apex in Las Vegas.

An American 32-year-old from California, Rountree said March marked 12 years since he'd been training and competing in MMA.

While holding back tears he then told the small and intimate crowd at the UFC's studio, and those watching at home on ESPN+, that he was once a 300-pound child "burdened by depression, and not knowing what to do with my life."

He said: "I just want to be able to share that, and really inspire the millions of people out there who feel just like I do, who don't have a dream and don't know what they're doing.

"I want to be able to share my story with these types of people because maybe there's some lives that I can change. So when I come in here, man, that's my focus.

"I want to be able to tell a story with my life and not just come in here and fight. Yes, this made me who I am today but I want to be able to do something big. If I want to take on the world that way, I've got to have focus."

Rountree certainly had focus in the fight itself as he appeared to beat Roberson like he was owed money.

Rountree landed 18 of 54 strike attempts (33%) in the opening round — and every single one of those shots was thrown with bad intentions.

Rountree hit him with jabs, sweeps of the leg, and overhand lefts, and came into his own in the second round by dispatching a punching flurry that finished with an almighty right hook that sent Roberson to the floor.

Rountree needed no second invitation to hit him with shots when he was on the floor and as Roberson tried to get to his feet, Rountree cracked his ribs with a kick so hard, the thudding sound could be heard from press row.

Watch the finish right here:

—ESPN MMA (@espnmma) March 13, 2022

The swift effectiveness of Rountree's dominance in the second round was underlined by this stat: Roberson didn't land one strike at all in the second. He managed to throw only one.

By the end of the bout, Rountree landed 26 of 69 strike attempts (37%), including two knockdowns.

With victory, he advanced his pro MMA record to 10 wins (seven knockouts and three decisions) against five losses.

Watch his post-fight speech right here:

—ESPN MMA (@espnmma) March 13, 2022