Andrea Petkovic is prepping for Wimbledon, where she reached the third round in 2011.
Dennis Grombkowski/Bongarts/Getty Images

NUREMBERG, Germany (AP) -- Andrea Petkovic reached her first WTA final since October 2011, upsetting top-seeded Jelena Jankovic 6-4, 6-3 Friday.

In Saturday's final, Petkovic will play seventh-seeded Simona Halep, who beat fifth-seeded Lucie Safarova 6-3, 0-6, 6-2.

Petkovic and Jankovic both received wild-card invitations into the clay-court tournament. Petkovic was once in the top 10 but the German missed months of action due to various injuries and has dropped to 103rd. Jankovic is a former No. 1 who has fallen to No. 16.

"I am glad my body has allowed me to play tennis again,'' Petkovic said. "It was also mentally important for me to play such a match against a top-20 player.''

Petkovic dropped her serve early in the match but recovered to take the first set.

Serving for the match after breaking for 5-3, Petkovic fell into a 0-40 hole, only to see the Serb produce error after error and end the match with a backhand that sailed wide.

Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide - from Peter King, Tom Verducci, Lee Jenkins, Seth Davis, and more - delivered straight to you, along with up-to-the-minute news and live scores.