LONDON, England - Andrea Petkovic's follow-up to her breakthrough 2011 has taken another hit, as she has announced she will be missing her third Grand Slam event in a row, this one due to a continuing right ankle injury.

Petkovic missed all tournaments from the Australian Open to the clay court season due to a low back injury, and in her comeback tournament in Stuttgart she suffered a right ankle injury, which has caused to her to miss every tournament since - including the French Open and now Wimbledon.

"Unfortunately I will not be able to return in time for Wimbledon this year. While this is another setback in my return, I will continue to work hard on getting back on court as soon as possible," Petkovic said in a statement this week.

Petkovic finished 2011 at No.10 in the world, her biggest achievement being reaching her first three Grand Slam quarterfinals at the Australian, French and US Opens - the only player on the WTA to make it to the quarterfinals or better at three of the four Grand Slams. This week she is ranked No.18.