Tennis: Aussie battler Hewitt notches up emotional win

Australia's Lleyton Hewitt falls to the court as he celebrates his win over Canada's Milos Raonic in their third round match at the Australian Open tennis championship, in Melbourne, Australia. Photo / AP

An emotional win for Lleyton Hewitt at the Australian Tennis Open.

The Australian wildcard has sealed a fourth round meeting with Novak Djokovic after coming from behind to beat Canadian Milos Raonic.

Hewitt says he's done a lot of work just to be in Melbourne after an injury-plagued 2011.

He says a lot of people wouldn't have given him much hope of making the fourth round but he's managed to do it.

Andy Murray is also through to the round of 16 after a straight sets in over Frenchman Michael Llodra.

In women's action, Serena Williams, Maria Sharapova and Petra Kvitova have all advanced in emphatic fashion.