Watch this legendary throwback, Ewerton Teixeira v Alistair Overeem from K1 World Grand Prix 2009.

MMA Legend Alistair Overeem takes on kickboxing superstar Tyrone Spong in this 12.11.2010 K1 throwback.

Gokhan Saki and Alistair Overeem go head to head in the 2010 K1 Grand Prix Semi Final. 2010.12.11 #Alistair #Overeem

Alistair Overeem and Peter Aerts go to war in this 2009 battle of legends. 2009.09.26

Watch this classic bout between Alistair Overeem and Ben Edwards

Alistair Overeem defeated Tyrone Spong, Gokhan Saki, and Peter Aerts to cement his place in kickboxing history as 2010 K-1 WGP Champ!

Watch this classic K1 battle between Tyrone Spong and Ray Sefo.

Tyrone Spong takes on Keijiro Maeda in this K1 archive fight from 12/05/2009.

Badr Hari takes on Ray Sefo in an old school clash of titans from a 2008 K1 event.

Check out this throwback kickboxing fight from Errol Zimmerman as he takes on Tovarovic Damir at a 2008 K1 event.

Kickboxing great, Semmy Schilt takes on Hesdy Gerges in this 2009 K1 bout.

Badr Hari takes on Peter Aerts as kickboxing legends collide in this 2008 K1 bout.

Old schoolers Ray Sefo and Hong Man Choi go at it in this classic K1 battle from 2008.

Watch Gokhan Saki take on Singh Jaideep in this 2010 K1 Kickboxing bout.

Kickboxing legends Tyrone Spong and Jerome Le Banner duke it out in this classic 2010 K1 bout.