10/15/2010 09:19 am ET Updated May 25, 2011

Ana Ivanovic Penalized One Game For Long Bathroom Break, Reaches Quarterfinals

Ana Ivanovic was docked four points for taking too long of a long bathroom break in the opening game against Barbora Zahlavova Strycova on Thursday at the Generali Ladies in Austria.

When Ivanovic left to go to the bathroom, she was winning 1-0 in the first set. When she came back, the score was tied at one.

The umpire reportedly docked the tennis star one point for every 20 seconds she went over the time limit.

"I felt a bit sick, so I had to go to the toilet," she said. "I asked the referee and I thought he granted me permission to go so, I was really surprised to be punished."

Ivanovic reportedly said she was feeling sick after eating yogurt before the match.

Despite being penalized, Ivanovic went on to defeat Zahlavova Strycova 6-3, 6-2 and reached the quarterfinals.