Jannik Sinner (No. 1 ranking) will face Ben Shelton (No. 20) in the semifinals at the Australian Open on Thursday, January 23.Sinner enters the semifinals after winning in three sets, 6-3, 6-2,

It's men's semi-final day at the Australian Open and there has already been a dramamtic development. Alexander Zverev is into the final after Novak Djokovic retired hurt at the Rod Laver Arena, moments after the German had taken the first set 7-6.

Fans would be disappointed to not see Djokovic go for his record-extending 25th title this time but it will surely be a great spectacle of tennis this time as well.