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,

Defending champion and No. 1 seed Jannik Sinner easily dispatches host country's last hope; Ben Shelton takes on-court interviewers to task.

Novak Djokovic dramatically retired from his Australian Open semi-final against Alexander Zverev after being unable to play through a torn muscle in his upper left leg before admitting there is a “chance” may have played at the tournament for the final time.