Dirk Nowitzki's now famous fading jumper on one leg that helped the Mavs beat the Thunder impressed the Heat.

"That is something new. He has always made some awkward shots for a big guy, but that one-legged shot that is pretty much un-guardable," said Heat forward Udonis Haslem, who had success guarding Nowitzki in 2006 when the Heat beat the Mavericks to win the title.

"Probably the most unstoppable shot ever is the sky hook. I guess you put Dirk second," James said. "You have a seven-footer fading away off one leg. There is no one that can block that shot."