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,

While Djokovic felled a major obstacle in his path on Day 10, it was a bad one Americans at the Australian Open. Five Americans overall made it to the quarterfinals, but the highest-seeded woman and man both lost on Tuesday.