Heath Herring
In 2000 Martijn fought Brazilian sensation "Jose Pele Landi-Jons". He lost that fight but it put him on the radar of Team Golden Glory, who asked him to join the team which was about to start. It was the first professional management team in Europe consisting of the following fighters: Semmy Schilt, Gilbert Yvel, Alistair Overeem, Valentijn Overeem, Heath Herring and Martijn de Jong. As a trainer of Golden Glory, he produced multiple World Champions like Alistair Overeem, Marloes Coenen and Siyar Bahadurzada.