ACE UP MY SLEEVE

Novak Djokovic's Australian Open dominance is intact — nine finals, nine championships. And he keeps gaining on Roger Federer and Rafael Nadal in the Grand Slam standings, now up to 18 overall, two away from the men's record shared by his two rivals. The math looks good for Djokovic, too. He is about a year younger than Nadal and 6 1/2 younger than Federer,