Novak indicates he's back on track

MELBOURNE - Novak Djokovic and Stan Wawrinka sailed through injury tests at the Australian Open on Tuesday, with focused former champion Maria Sharapova also successfully getting back to business after her drug ban.

Twelve-time Grand Slam winner Djokovic has been out of action for six months with an elbow injury, but you wouldn't have known it in his 6-1, 6-2, 6-4 demolition of American Donald Young.

Former Melbourne champion Wawrinka also returned from half a year on the sidelines after a knee surgery, having only decided he was fit to play on the weekend.