After a big win for Bayern to keep them in touch at the top of the Bundesliga, it's time to see if Barcelona can do the same in La Liga.

Girona are the surprise leaders in Spain after another win today with Xavi's side seven points back in fourth.

They can cut that to four points tonight as they travel to Reale Arena to face Real Sociedad.

The hosts have started the season well and will move up to fifth, just two points off Barca, with a win. It's all set up for a cracking game!

Image source, Reuters

That's 15 goals then in 10 league games for Harry Kane.

His third hat-trick in Bayern colours puts him atop the Bundesliga scoring charts, one goal above Stuttgart's Serhou Guirassy.

It's not enough to put Munich back in their usual position at the top of the table, though - they're still two points adrift of pacesetters Bayer Leverkusen who have won nine and drawn one of their 10 matches thus far.

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Pretty emphatic.

Harry Kane's hat-trick, after an early Dayot Upamecano header, gives Bayern Munich complete dominance in Der Klassiker.

It could have been more as well - 4-0 probably flatters Dortmund, who had Gregor Kobel to thank for keeping them in the game until late on with several fine saves.

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Harry Kane is an annoyed man.

His chest control from Thomas Muller's cross lets him down when there was a real opening for a hat-trick.

Four minutes to be added on as the formalities are played out.

Eric Maxim Choupo-Moting and veteran Thomas Muller come on for Jamal Musiala and Leroy Sane as the clock winds towards 90 minutes.

Dortmund's best chance of the game.

Lovely build-up involving Marco Reus ends with Julian Ryerson squaring for Youssoufa Moukoko but he side-foots over, under some pressure, from about six yards.

Got to take those chances generally even if it wouldn't have mattered in the context of this result.

Chance for a Dortmund consolation as they are awarded a free-kick 25 yards out.

But Marcel Sabitzer's strike flies a foot or two over with Manuel Neuer always having it covered.

Bayern not content with three goals, they want more and continue to go forward.

Five minutes plus stoppage time for Harry Kane to claim a third Bundesliga hat-trick so early in his Bayern career.

Credit to the Dortmund fans who continue to wave the black and yellow flags in spite of the scoreline.

They'll be drowning their sorrows in a few steins tonight though - this game is beyond rescue.

At the risk of being accused of waxing lyrical about Harry Kane - at 3-0 up, he's just tracked back into his own half to win the ball and earn a free-kick.

Harry Kane is now on 14 goals from 10 Bundesliga games.

Continuing that sort of ratio would have him on course for a 40-goal campaign.

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Dortmund getting annoyed now and with good reason.

Julian Ryerson booked for a knee in the back of Alphonso Davies.

Marcel Sabitzer follows him into the book shortly after.

Yep, offside. Must have been marginal.

Kane was playing on the shoulder of Nico Schlotterbeck and unselfishly squared for Musiala to tap home but VAR is happy the assistant referee flagged correctly.

Harry Kane thinks he's set up a third for Jamal Musiala.

It's flagged offside but it's close and VAR will have a look...

Moukoko almost makes an instant impact, beating his man down the right and pulling the ball back for fellow sub Felix Nmecha, whose 20-yarder takes a deflection on its way just wide.

Youssoufa Moukoko comes on for Julian Brandt.

Dortmund came from 2-0 down to draw 2-2 with Bayern last season - and Moukoko scored that night...

Dortmund go straight up the other end and Marco Reus heads over.

Niklas Fullkrug is then penalised for jumping into Leon Goretzka as a brief spell of Dortmund pressure ends.

Just over 25 minutes to go.