Kaia Kanepi made an early departure from the Australian Open this morning, losing in three sets to Spain's Garbine Muguruza, 2-6, 6-2, 2-6.
After winning the second set, Kanepi had her serve immediately broken. She broke back once but then lost four straight games, set and match.
Kanepi, ranked WTA 23, had not previously faced Muguruza (WTA 38).
Muguruza now goes on to face the winner of a match between Hungary's Timea Babos (WTA 87) and Slovak Anna Schmiedlova (WTA 81).
Kanepi will also be seen in doubles, paired with Renata Voracova (WTA 209, doubles 86), and they will meet Australians Sally Peers and Viktorija Rajicic in the first round.
Kanepi is the only Estonian represented at the tournament. Annett Kontaveit had been hoping to play in her first Grand Slam but found herself coming short of the qualifying ranking.