Alistair Overeem is ready to put friendship aside in his heavyweight scrap with Aleksei Oleinik on Saturday in St Petersburg.
The gloriously named Yubileyny Sports Palace will host Fight Night and a couple of the sport's wily veterans take centre stage in the main event.
Overeem, 38, takes on the 'Boa Constrictor', a man three years his senior and the pair are well versed with each other's games.