Andreas seppi

American Marcos Giron: World No.1 Jannik Sinner outclassed American Marcos Giron in straight-sets to move to the fourth round and kept his title defense hopes alive at the Australian Open on Saturday.

The Italian edged past Marcos 6-3, 6-4, 6-2 under the lights inside Rod Laver Arena. However, the 23-year-old is seeking improvement in his game as he enters the second week.

Sinner offered no let up from the baseline as he asserted his dominance and improved to 2-0 in their ATP head-to-head series.