Borussia Dortmund right-back Lukasz Piszczek could potentially miss his side's Champions League second-leg clash with Real Madrid on Tuesday night.

The club's manager Jurgen Klopp has ruled his player out of the weekend's match with Fortuna Dusseldorf and admitted that he is uncertain whether he will be fit for the Real game.

"He will definitely not play against Düsseldorf," Klopp told UEFA.com. "Even the second leg against Real might be too early."

Dortmund hold a 4-1 lead from the first leg.