Clippers assistant coach Marc Iavaroni has been around the NBA for quite some time, but he's still come away impressed with the work ethic of Blake Griffin.

"He's one of the hardest working guys I've ever been around," Iavaroni told ESPN.com's Chris Palmer.

"He's extremely driven and you can see why he was the No. 1 pick for a reason and it's not just superior talent but because of his work ethic."

Griffin has been in the gym every day in the month of August.