You don't think G.A.R. will crush him? Viktor Pistol will not only have last been in the ring 1 year and 6 months ago but also at the advanced age of 38 year's and 1 month. I think he gets steamrolled.
Postol fought the absolute ELITE at 140 in Taylor, Ramirez and Crawford and apart from some rounds where he was knocked down he was competitive with all those guys for many other rounds and sequences. There is no evidence that a guy like Antuanne is going to steamroll a veteran like Postol. Postol will probably lose the fight as he has no chance to win a decision anyway but it'll be competitive for sure.