George Karl has been impressed with the play of 19-year-old rookie guard Evan Fournier from France.

"..Fournier, from the standpoint of being good enough to challenge guys to play the right way," said Karl about one of the surprises in training camp for the Denver Nuggets.

Fournier will receive minutes in Friday's game against the Spurs.

"It's just his makeup right now - he's courageous and ambitious and he does it the right way," Karl said. "He's a sponge from the standpoint of trying to learn. And usually he doesn't make mistakes twice, which is unusual for rookies in this league. He hasn't been yelled at a lot."