Novak Djokovic, who watched Roger Federer defeat Milos Raonic in three sets on Tuesday, said the young Canadian sensation has elite potential. "We all expected Milos to serve the way he serves," Djokovic said of the 27th-ranked Raonic. "He's always serving really strong and using that as a great weapon. It was a close match. Milos has a bright future in front of him. He's a very nice man in the first place, and somebody that you could feel that is very committed to the game. He's very professional. He understands the match play, what he needs to do in important moments. That's going to be crucial for him to overcome those challenges in the future. But he has potential to be Top 10."