Novak Djokovic has copped criticism for his comments suggesting tennis should be more like the NBA and NFL - and the world's richest tennis player has had her say

The Serb had suggested that dancers could be brought on court during breaks to appeal to a new 21st-century generation. Read more at straitstimes.com.

Novak Djokovic has suggested tennis needs to embrace change, after suspecting the younger generation may be struggling to maintain their focus during long Grand Slam matches. Djokovic clashed with a spectator giving him abuse during his hugely impressive straight-sets third round win against Tomas Machac,

Novak Djokovic won in straight sets against the hecklers, too. Djokovic responded to an Australian Open fan who yelled an angry message to him after the Serbian rolled to a 6-1, 6-4, 6-4 victory over 26th-seed Tomáš Macháč.