Background
Grishin competes in the heavyweight division, despite weighing around 220 lb, a mere 15 lb over the light heavyweight weight limit. Grishin, therefore, is regarded as a small heavyweight, though he has fast striking ability.
He trains with the Red Devil Sport Club – the training facility of Fedor Emelianenko and other top Russian fighters. As part of the Red Devil Sport Club, Grishin has also trained in Stary Oskol at the St. Alexander Nevsky Sport Palace. In the build-up for his intended M-1 Global title fight against Guram Gugenishvili, Grishin trained with Kirill Sidelnikov, Dmitry Samoilov, Viktor Nemkov and Alexei Nazarov. Unfortunately, Grishin was forced to withdraw from the bout with a knee injury that occurred during a national hand-to-hand combat fighting championship in Ufa. Consequently, M-1 Global Americas Champion Kenny Garner gained the opportunity to challenge fight Gugenishvili for the M-1 Heavyweight Challenge Title