Germany teenager Jamal Musiala rifled Bayern Munich ahead after RB Leipzig had failed to clear a corner-kick after 14 minutes.

Ex-Liverpool forward Mané then tapped in on the half hour from Serge Gnabry’s pass as the Bavarians quickly got used to life without new FC Barcelona signing Robert Lewandowski.

Benjamin Pavard made it three before the interval.

The season curtain-raiser between last term’s Bundesliga champions Bayern Munich and the German Cup winners was held in Leipzig.

But the hosts did little to threaten the visitors until Marcel Halstenberg’s second-half header.

Gnabry and Christopher Nkunku then traded goals before Dani Olmo’s late strike for RB Leipzig made things interesting, only for Leroy Sané to score at the death.

“I’m really, really happy to win my first trophy with Bayern Munich. “I’m looking forward to more trophies,” Mané said later on.

Bayern Munich coach Julian Nagelsmann, formerly at RB Leipzig, started Senegal’s African Player of the Year while other new signings such as Matthijs de Ligt began on the bench.

RB Leipzig’s Domenico Tedesco meanwhile included Austria midfielder Konrad Laimer, heavily linked with a move to Bayern Munich.

But left-back Angelino was missing as he looks for another club with Hoffenheim’s David Raum set to arrive.

After a minute’s silence and applause for late Germany great Uwe Seeler, the first excitement came when Bayern Munich goalkeeper Manuel Neuer raced out of his box.

But he failed to clear the ball, only for his defenders to mop up for him.

Bayern Munich then took the lead but it was more to do with RB Leipzig’s casual defending than anything.

After some pinball in the box, 19-year-old Musiala pounced and made no mistake.

A lot is expected of midfielder Musiala this season —- with Bayern Munich set to play without an out-and-out striker —- and he passed his audition with aplomb.

RB Leipzig, linked in the media with former Borussia Mönchengladbach sporting director Max Eberl, thought they had soon levelled.

But Nkunku —- Bundesliga Player of the Season last term —- was rightly flagged offside.

Mané then made the headlines, even though in truth it was one of the easiest goals he will ever score, with two more efforts later on chalked off for offside.

Musiala took centre stage again by setting up Pavard on the stroke of half-time.

But RB Leipzig’s defending was again loose following the departure of Nordi Mukiele to Paris Saint-Germain (PSG).

Substitute Andre Silva struck the bar for RB Leipzig after the break and Halstenberg went one better with his own header from a corner-kick.

But any hopes of a comeback were quickly ended by Gnabry smashing into the roof of the net.

Nkunku’s 77th-minute penalty kick and Olmo’s fine finish came too late for the Red Bulls as Bayern Munich’s defence suddenly wilted, before Sané had the last laugh on the break.

“In the first half they simply showed their strength. They were coming from everywhere, left and right,” said RB Leipzig’s Tedesco.

“We’ve got to improve and bring the lads to a good level.”

The game clashed with the first round of the German Cup, meaning that RB Leipzig and Bayern Munich take on Ottensen and Viktoria Cologne at the end of August.

Bayern Munich kick off the Bundesliga campaign at Eintracht Frankfurt on Friday.