Sprott has also sparred Haye earlier in the Londoner's career and admits his searing handspeed is one of his main attributes.
Both men have demolished opponents in explosive fashion and Sprott expects the pair to produce a dramatic knockout.
"David Haye, his speed's phenomenal. He's very quick and he's a puncher," he said.
"Fury can punch as well, but Haye is very quick, he's got very good fast twitch muscles.
"Fury is a big puncher. I sparred David Haye when he was a cruiserweight and he was punching like a heavyweight then, so who knows what he's punching like now.
"They are both going to go for it. It could be a case of whoever lands first. I don't think it will go the distance at all, I cannot see it.
"Fury has been down, he has got back up and won the fight. He has done that a few times. You just don't know.
"I think it's 50-50 and I cannot see the fight going 12 rounds. I might be wrong. I can't see it. I think there will a stoppage around the sixth round, I reckon. "
