Wild card Sally Peers caused an upset in the first match of the 2011 season as the Australian defeated seventh seeded Russian Alisa Kleybanova 3-6 6-4 6-3 in the first round of the Brisbane International at the Queensland Tennis Centre.
Peers, ranked 154 in the world, recovered from a set and a break down to defeat her 25th-ranked opponent.
Also in the first round, Serbian Bojana Jovanovski beat Australian Anastasia Rodionova 2-6 6-2 6-3.
Another naturalised Australian, world number 42 Jarmila Groth, reached the second round with a 6-2 7-5 victory over Spaniard Arantxa Parra Santonja.
Number five seed Anastasia Pavlyuchenkova defeated fellow Russian Alla Kudryavtseva 6-2 6-7 (5/7) 6-3 and Czech world number 30 Lucie Safarova beat Uzbek Akgul Amanmuradova 6-3 3-6 6-2.
In the men’s first round sixth seed Feliciano Lopez, of Spain, beat Germany’s Philipp Petzschner 6-4 7-6 (11/9).
Uzbekistan’s Denis Istomin was a winner over Thiemo de Bakker, of the Netherlands, by a 7-6 (7/5) 6-4 score.