The fifth-seeded Italian was dominating the 24-time Grand Slam winner 6-4, 6-3, 1-3 and well on his way to a maiden semifinal at Melbourne Park when he threw in the towel.
The fifth-seeded Italian was dominating the 24-time Grand Slam winner 6-4, 6-3, 1-3 and well on his way to a maiden semifinal at Melbourne Park when he threw in the towel.