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.

The left-handed Shelton did some entertaining of his own, including earning cheers by doing a couple of push-ups after tumbling in the concluding tiebreaker, and he reached his se