If anyone can sell a fight it's Lesnar.Mir was in the best shape we've seen him in since his accident last time out. If he builds from that he submit Lesnar from his back.If he's tubby & out of shape again Lesnar will club him into submission with ground & pound. My money is on Mir late in the 1st round.
Mir is tough, but you never know what you're going to get with him. The heavyweight division is in a decline and maybe Lesnar is what it needs.