MELBOURNE, Australia — Coco Gauff's retooled forehand and serve abandoned her in the worst way and at the worst time at the Australian Open . The unforced errors just kept accumulating Tuesday, and so did the double-faults and break points, often followed by a palm placed over her eyes or a slap to a thigh.

On Tuesday, Djokovic came out on top. While Alcaraz took the first set, Djokovic roared back and stifled Alcaraz in the next three sets, winning 4-6, 6-4, 6-3, 6-4. Djokovic moves on to the semifinals where he will face No. 2 seed Alexander Zverev on Friday.

Novak Djokovic, Coco Gauff roll to Australian Open's 4th round. Naomi Osaka retires due to injury and Jessica Pegula was upset in the third round.