Novak Djokovic was delighted to get back into the semi-finals at the Australian Open after missing out for two years as Kei Nishikori retired injured yesterday. The World No. 1 eased into a showdown with French 28th seed Lucas Pouille as Nishikori retired after just 51 minutes when behind 6-1, 4-1 in the quarter-final.

"Feels great. This has been my most successful Grand Slam throughout my career, the first one that I won back in 2008," said Djokovic, who is chasing a record seventh Melbourne Park title.