Alistair Overeem shocked Junior dos Santos with left-hook TKO

Alistair Overeem back!

After TKOing Brock Lesnar, UFC heavyweight Alistair Overeem looked to be the next big thing.

Three losses in his next four fights set him back. But Overeem looks to have recovered nicely, winning his last two fights before knocking out Junior dos Santos in impressive fashion Saturday night.

Check out Overeem slip a dos Santos punch and counter with a nasty left hook that sent his heavyweight counterpart sprawling to the mat.