Novak Djokovic reaches Australian Open quarter-finals

Novak Djokovic eased past Fabio Fognini to reach the quarter-finals and keep alive his bid for a fourth straight Australian Open title and fifth in all. 

The Serb beat Italy's 15th seed 6-3 6-0 6-2 and will play Switzerland's Stanislas Wawrinka in the last eight.
Spain's third seed David Ferrer also progressed with a 6-7 7-5 6-2 6-1 win against Germany's Florian Mayer.
Women's fourth seed Li Na of China was untroubled in a 6-2 6-0 win over Russia's Ekaterina Makarova.
The undoubted shock of the day was world number one Serena Williams's defeat by Ana Ivanovic.
Meanwhile, Britain's Dominic Inglot partnered Treat Huey of the Philippines to a 6-4 7-6 (7-1) third-round victory against India's Rohan Bopanna and Aisam-Ul-Haq Qureshi of Pakistan in the men's doubles.