Five? Robert Lewandowski should have scored seven, says Phillipp Lahm

Coach Pep Guardiola then brought on Lewandowski at half-time and the move paid dividends.

And the Federation Internationale de Football Association World Cup-winning centre-back admitted he can still enjoy the displays of his former team-mate, insisting there are no hard feelings despite his switch to its rival.

Fellow strugglers Augsburg were also beaten at home with Hoffenheim picking up their first win of the season, a 3-1 triumph at the Augsburg Arena.

The Champions League game comes after two hugely successful league games against Wolfsburg and Mainz which they won 5-1 and 3-0 respectively.

Robert Lewandowski of FC Bayern Munich celebrates his goal against FSV Mainz 05 during their German first division Bundesliga soccer match in Mainz, Germany Saturday.

The Poland striker scored again in the 57th and claimed another goal three minutes after that, when he met Mario Goetze’s cross with a scissor kick into the top corner.

A Granit Xhaka strike and an own goal by Christian Gentner gave Gladbach a 2-1 lead before Daniel Ginczek slotted home a 40th-minute penalty for the hosts, then Brazil striker Raffael netted late for Gladbach. Five goals in nine minutes! After wrapping postmatch responsibilities, there is still a couple of hours’ time to hopefully celebrate three points. He now holds the record for the shortest time taken to to score five goals in a single match – a feat he shares with Cristiano Ronaldo, Lionel Messi, and Radamel Falcao – and the Bundesliga record for the fastest hat-trick.

Gunners legend Ian Wright expressed his disappointment over the summer saga when he said: “The whole Benzema thing was quite embarrassing for us”. They went down 1-0 to Bayer Leverkusen in midweek, with Javier Hernández netting the game’s only goal midway through the second half.

Hiroshi Kiyotake cancelled out Bas Dost’s goal to earn Hannover their first point in six games and ease the pressure on their coach Michael Frontzeck.

Jermain Defoe scored five second-half goals for Tottenham against Wigan in 36 minutes in 2009.

Oktoberfest is in full swing in Munich, but Lewandowski says they have more important concerns than the annual visit at the invite of a team sponsor.