Unfortunately for Brock Lesnar, at UFC 121 it was both. Cain Velasquez appears to simply be on a different level from anyone else as a mixed martial arts heavyweight.

A young, undefeated heavyweight who could probably fight light heavyweight by the name of Cain Velasquez totally derailed the Lesnar train this past Saturday night at UFC 121 in Anaheim, Calif.

Jake Shields wins by split decision. Brock Lesnar vs. Cain Velasquez – Round 1 – Lesnar charges in and Cain is throwing hands and Lesnar with a knee. Right hand by Lesnar.

Brock Lesnar is a force inside the UFC cage. His combination of raw power, size and speed is not an easy thing to duplicate in a training camp. Cain Velasquez is in a very good position as the UFC ...

UFC 121 not only saw several fighters step out of the shadows and into the spotlight, it also saw history being made as Cain Velasquez became the first Hispanic Heavyweight Champion in combat sports.

Brock Lesnar was downright stunned when Cain Velasquez took his biggest shots, escaped his violent takedowns and just kept coming at him at UFC 121 in Anaheim on Saturday night.

Velasquez got Lesnar into trouble and didn't let the opportunity slip away, as he won the Ultimate Fighting Championship heavyweight title with a first-round knockout in the main event of UFC 121 ...

So I think Velasquez is a future heavyweight champion, I'm not quite sure he's ready. But Lesnar had a tough fight with Shane Carwin at UFC 116 in July and was forced to show a lot to pull that ...

Photos Cain Velasquez, right, lands a left to the face of Brock Lesnar during a UFC mixed martial arts match in Anaheim, Calif., Saturday, Oct. 23, 2010. Velasquez won by TKO in the first round.

UFC 121 is set to be held in Anaheim, Calif., on Oct. 23, 2010. The event, which will be the fourth UFC event held at Anaheim's Honda Center, will feature 11 bouts, headlined by the heavyweight ...

Fresh off his impressive victory over Shane Carwin at UFC 116, heavyweight champion Brock Lesnar (5-1) will defend his title against Cain Velasquez in the main event of UFC 121 on Oct. 23 from the ...