Djokovic through to Australian Open third round

MELBOURNE - Serbia's top-ranked tennis player Novak Djokovic defeated Frenchman Enzo Couacaud 6-1, 6-7 (5-7) in the Australian Open second round on Thursday.

Djokovic won comfortably despite hamstring injury problems in the second set.

In the third round, Djokovic will face Bulgarian Grigor Dimitrov, who defeated Serbia's Laslo Djere.