Tennis: Djokovic ready for assault on calendar grand slam

- (GMA 7 Sports) - 3 months, 2 weeks ago...

When the year began, common logic suggested Novak Djokovic would struggle to emulate his extraordinary 2011, but after retaining his Australian Open title in astonishing fashion Sunday, the question is — can anyone stop him from setting the bar even higher?...

To view this article in full, click here.