There’s always been a stigma about female players who achieve the No. 1 ranking without first winning a Grand Slam title: They don’t stay No. 1 for long, and they never get back to that level again.

ATP Rankings: Nishikori Knocking on the Door of the Top Ten

This was the case for the likes of Dinara Safina and Caroline Wozniacki (so far), and it's seemingly the case for Jelena Jankovic as well, who spent 17 weeks at No. 1 in 2010, only to fall as far as 26th two years later.

On Saturday, Jankovic lost in the semifinals at Stuttgart, and on Monday she rose to No. 7 in the world, her highest rank since April of 2011.

Stuttgart was the seventh time this year that Jankovic has reached at least the quarterfinals. She is 23-10 overall.

Outside the top ten the biggest news of the week was the inspiring return of Alisa Kleybanova to the top 100. The Russian left the tour as No. 26 in the world in 2011 when she was diagnosed with Stage 2 Hodgkin's Lymphoma. After a brief return in March of 2012, Kleybanova had to shelve her plans to rejoin the tour for another year. By the time she started playing smaller challenger events in May of last year, Kleybanova had dropped all the way to 922 in the world.

Today, after a quarterfinal appearance at the Porsche Tennis Grand Prix in Stuttgart over the weekend, Kleybanova makes her return at No. 87.