Munich, Germany (SportsNetwork.com) - Bayern Munich's Champions League hopes took a big hit on Wednesday as the club announced that winger Arjen Robben will miss the rest of the campaign while forward Robert Lewandowski has sustained a broken jaw and nose.

Both injuries occurred in Bayern's Pokal Cup defeat to Borussia Dortmund on Tuesday as Bayern lost on penalty kicks after failing to convert any of their four chances from the spot.

Lewandowski scored the opening goal against Dortmund on Tuesday but suffered his injuries after a collision with goalkeeper Mitch Langerak in the closing minutes of extra time.

He was not substituted because Bayern had already used its three subs, but he didn't take part in the shootout.

The Poland international was taken to the hospital after the match and scans revealed the extend of the injuries. And while Lewandowski is sure to miss some time, Bayern failed to rule him out for the rest of the season.

Robben, however, will not play again this season after suffering a torn calf muscle in Tuesday's semifinal.

The Dutchman missed the last month through injury and only lasted a few minutes after entering the game before he went to ground holding his calf.

Bayern has already wrapped up the Bundesliga title, and after being eliminated from the German Cup on Tuesday, all eyes have turned to the Champions League for Pep Guardiola's side.

The German giants face Guardiola's former club, Barcelona, in the semifinals of the competition, but will be playing without Robben and possibly Lewandowski, two of the top offensive weapons for the team.

Robben leads Bayern with 17 goals in league play, while Lewandowski has emerged as the top goal threat with 23 goals and 12 assists in all competitions this season.