Melbourne, Jan. 28 -- Defending champion Jannik Sinner marched into the semifinals of the ongoing Australian Open, beating America's Ben Shelton to set up a clash against Serbian icon Novak Djokovic in the final four stage.

The two-time champion, aiming for a hat-trick of titles, outclassed Shelton 6-3, 6-4, 6-4, who never looked threatening against the class and skill of the Italian.

On his way to the third Australian Open quarterfinal, Shelton had dropped just one set, but his explosiveness waned against a technically brilliant Sinner, who exposed Shelton's backhand and rushed him on the forehand wing and dictated the action from the baseline.

Now, Sinner's one-sided record against Shelton has got even better, with the Italian mainta...