Barcelona striker Robert Lewandowski admits he cannot explain Poland's defeat to Albania.

The Poles lost their Euro qualifier 2-0 to the minnows.

Lewandowski admitted to feeling "powerless" and "incapable of explaining the reasons" for defeat in Tirana.

"We've had problems since the beginning of the qualification phase," admitted the Pole. "What happened to a team that used to play much better with almost the same lineup?

"I know we have the potential to play better and win," he concluded.