That explains the tears we saw in the photos. It's a shame for Anna and the fans in Toronto, because a Vaidisova-Chakvetadze matchup would have been great to see.
Saw Anna play in Indian Wells and was very impressed. She is very talented, has beautiful form, and moves well. She is a star in the making. Hopefully she'll recover completely from this injury in time for the U.S. Open.
9 days ago I saw Perry retire from a singles qualifying match in Los Angeles. She lost the first set 6-0, called the trainer, had a short conversation, and retired. I couldn't really see anything wrong with her. Maybe it was an illness.