Lewandowski hits hat-trick despite hole in right boot

"It didn't seem to affect me much," Lewandowski, the Bundesliga's top scorer last season with 30 goals in his 32 games, told broadcaster ARD.

"I didn't really notice it until late in the game.

"I'm just pleased to have scored and that we got the win."

The 28-year-old finished the match with a gaping hole on the top of his all-important right boot, with which he scored all three goals, and has his nickname 'Lewy' printed on the sides.

His hat-trick means he has now scored 50 league goals in 64 games since joining Bayern from Borussia Dortmund in 2014.

It was the Poland star's second hat-trick in exactly a week after he netted three last Friday in Bayern's 5-0 romp at minnows Carl Zeiss Jena in the first round of the German Cup.

On Friday, Lewandowski netted Bayern's first at Munich's Allianz Arena with only 13 minutes gone.

He then hit the woodwork in the first half and added his second with just 39 seconds of the second-half gone tucking home Thomas Mueller's long-rang cross.

He converted a penalty midway through the second half, after defender Rafinha was fouled in the area, to wrap up his hat-trick on 77 minutes.