No. 2 seed Aryna Sabalenka upset in Aussie Open

Second-seeded Aryna Sabalenka of Belarus was upset in Round 4 of the Australian Open on Monday, ousted by the 115th-ranked woman in the world.

Estonia's Kaia Kanepi defeated Sabalenka 5-7, 6-2, 7-6 (7) to advance to the quarterfinals.

Kanepi hit just 30 winners compared to 36 for Sabalenka but she committed just 30 unforced errors compared to 46 for the Belarusian. Kanepi saved five break points while breaking Sabalenka