Petra Kvitova, who came close to reaching the world No. 1 ranking at the start of 2012, says that while it is not her main goal, it is one that she would eventually like to achieve. The seventh-ranked Czech is part of the eight-woman field at the WTA Championships, which begins next week in Istanbul. She won the title there in 2011.

“Right now No. 1 is just a number,” she told Tennis Journal. “When I was pretty close [in 2012] it was still a number and I was focusing more on my game. But for the players it means a lot and everyone wants to be it. I [just] have to believe in myself.”