The co-main event of the UFC 145: "Jones vs. Evans" event taking place tonight (Sat., April 21, 2012) at the Philips Arena in Atlanta, Georgia, on pay-per-view featured fast-rising welterweight prospect Rory MacDonald taking on British banger Che Mills.

It was supposed to be a tough (but not too tough) test for the MacDonald, a Canadian badass who trains with Georges St. Pierre and is apparently the heir apparent to St. Pierre's 170-pound throne.

The hype is justified, at least for one more fight, as MacDonald dominated the fight en route to a second round technical knockout victory.

That's not to say the young Canadian wunderkind was flawless. He got himself in trouble early when he was rocked standing and only took control of the contest once he got the fight to the floor. But a win is a win and there's still plenty of time to grow.

Watch out, welterweights. Here he comes.

Mills was the early aggressor, backing MacDonald up against the fence and landing with a big right hand. This led to a clinch and a brief stalemate. Once they reset, Mills landed another hard shot and Rory had enough of it, to the point that he quickly grabbed a takedown.

Turns out, "Ares" is a beast on top and he started dropping some serious punches and elbows. That opened Mills' guard and MacDonald passed to side control. Then he took it a step further and got a mounted crucifix with a full two minutes left in the round.

Mills managed to get out of the bad position but he didn't come out clean. His face was a crimson mask and he looked as tired as I've seen a guy who had just spent a few minutes on his back.

Abandoning side control, MacDonald moved to full mount. Brutal ground-n-pound followed. The round came to a close and Mills' face was absolutely battered.

The second round started and quickly mirrored the first. Mills ended up on his back with MacDonald on top of him and dealing damage. It was only a matter of time, then, before he secured the stoppage victory via big time ground-n-pound.

One more step up that 170-pound ladder.

Remember, too, to check out MMAmania.com's live ongoing round-by-round, blow-by-blow coverage of the UFC 145 fight card by clicking here.