Borussia Dortmund have given former Germany international Patrick Owomoyela a one-year contract extension until 2013.

The 32-year-old, who was part of Germany's 2005 FIFA Confederations Cup squad, has struggled with injuries in recent seasons, making just 76 appearances in four years with Dortmund, but the Bundesliga champions are convinced he can still play an important role for them next season.

"We believe that, once Patrick has fully recovered from injury, he will remain an important component of our squad due to his qualities as a footballer and his experience," said Dortmund's director of sport Michael Zorc.

Owomoyela said: "I am very pleased that the club is showing faith in me despite a few unfortunate, badly-timed injuries and that I can now play a fifth year in Dortmund."

The contract of back-up goalkeeper Mitchell Langerak has also been extended today with the Australian now committed to the double winners until 2016.

"Mitch has continuously improved over the past two years and we are convinced that he has all the capabilities that a world-class goalkeeper requires," commented Zorc on the Westphalian club's website.