Novak Djokovic’s Australian Open controversy explained: Why did he refuse on-court interview?

The Australian Open broadcaster, Channel Nine, has been in the middle of a controversy after Novak Djokovic demanded an apology due to "offensive" comments made by one of their reporters, Tony Jones. We address all the key points on the incident.

• Former World No.1 and four-time Grand Slam winner picks the best between Djokovic, Nadal and Federer
• Tennis legend John McEnroe chooses the greatest player among Federer, Nadal and Djokovic