Mike Tyson may be washed up as a world class boxer, but he still has a hard head.When champ Lennox Lewis was shaking hands at Tao Tuesday night, he extended his meaty left paw, explaining he broke his right on Iron Mike's melon in the first round last Saturday.As everyone knows, Lewis completely dominated Tyson, and left him bleeding and flat on his back in the eighth.Lewis celebrated his devastating KO at Tao with 10 pals and bottles of Cristal, and sampled a congratulatory cake from the kitchen.