India, Jan. 24 -- Novak Djokovic simply does not look close to slowing down. Even at 38 years old, he looks close to his best, and was in vintage form as he roared past Dutchman Botic van de Zandschulp to enter the round of 16 at the Australian Open with a straight sets 6-3, 6-4, 7-6 win.

The world record men's grand slam titles holder added another record to a list that is full to the brim, as he became the first men's player to reach the enviable mark fo 400 victories at grand slam tournaments in singles.

Having already snatched away Roger Federer's reign at the top as the man with the most singles match wins in grand slam tennis, Djokovic outdoes the Swiss legend's mark of 369 by one more, and becomes the first to clear that benchmar...