It's always sad when a great player calls it quits. Especially a guy like Kenichi Sako, who was called "Japan's Mr. Basketball" over the years.

But Sako, one of the best Japanese basketball players ever, has left the game he loves with the same attitude he had on the floor: smiling.

The Aisin Sea Horses point guard, who announced his retirement on Friday, said he exits with no regrets.