Chisora is just a warm up and a way to make a brave guy some money. As for Haye, I think he'll struggle more against Vitali than Wlad. Vitali might be a bit more sluggish nwo due to the ages but he's not fighting as carefully and he sure knows Haye doesn'y have the power to really injure him, which makes me think he might be able to put Haye in more hot waters than what happened during the fight with his brother. Hopefully it happens, let's see.