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Borussia Dortmund's Sven Bender ruled out for month with knee injury

The German international faces up to a month out on the sidelines following surgery on his knee early this morning.

Sven Bender has been an integral part of Klopp's side. (Picture: kicker.de)

By VAVEL9 January 2015 17:33 BST

Borussia Dortmund midfielder Sven Bender is set to face a spell on the sidelines for a month after undergoing knee surgery.

The German international twisted his knee on Wednesday and went under the knife Friday morning.

“Borussia Dortmund’s Sven Bender twisted his knee on Wednesday,” read a statement on the club’s website.

“The midfielder was successfully operated on today [Friday].

Dortmund team doctor Markus Braunn expects a downtime of about four weeks.”

The 25-year old has made 13 appearances for Dortmund this season as Jürgen Klopp’s men entered the winter break in the relegation zone, having only won four of their 17 league matches.

Dortmund resume their Bundesliga campaign away to Bayer Leverkusen on January 31.