If you want to watch a live stream of the Aussie Open you have three options.

Option 1:  Watch at bet365 (sign-in, select sports > live streaming > Nadal v Verdasco)
Option 2:  Watch at Ladbrokes (sign-in, select sports > ladbrokes TV > Nadal v Verdasco)
Option 3:  Watch at SkyBet Live (only for UK based viewers)