QUEBEC CITY -- Canadian star Aleksandra Wozniak injured her right shoulder during a warm-up session and withdrew from the Bell Challenge on Thursday before her scheduled second-round match against Melanie Oudin.
Wozniak, ranked 48th and seeded fourth, said she will have an MRI on Friday morning.
In other second-round matches, Anna Tatishvili beat seventh-seeded Petra Martic 6-2, 6-3. Kirsten Flipkens edged Mirjana Lucic 6-7 (2), 6-2, 6-4. And eighth-seeded Lucie Hradecka beat Canadian Eugenie Bouchard 7-6 (2), 2-6, 7-6 (4).