- Yet Bayern's star striker is now back to his best, having scored in both Bundesliga games so far this season.
- He will be looking to continue that run when his side host Bayer Leverkusen, in what will be his 200th appearance for the Bavarian giants.
- Leverkusen, meanwhile, are hoping to avoid their worst ever start to a Bundesliga season after they lost their opening two games.
Robert Lewandowski will celebrate his 200th appearance for Bayern Munich this weekend, as the Polish superstar looks to continue his explosive early-season form when Bayern host Bayer Leverkusen on Saturday.
Lewandowski, who has 157 goals in 199 appearances in his Bayern career so far, has found the net six times in competitive games this term, and is already a firm favourite to become Bundesliga top scorer this season.
Along with Schalke and RB Leipzig, Leverkusen are one of several big teams who are hoping to bounce back from a disastrous start to the campaign.
Elsewhere, Barcelona loanee Paco Alcacer is set to make his Borussia Dortmund debut against Eintracht Frankfurt on Friday, while Saturday will see the Bundesliga's oldest and youngest coaches go head to head in Duesseldorf.
Here are five things to look out for in this weekend's Bundesliga action:
Amid rumours of a move away from Munich and an early World Cup exit with Poland, it had been a turbulent summer for Robert Lewandowski.
Yet Bayern's star striker is now back to his best, having scored in both Bundesliga games so far this season.
He will be looking to continue that run when his side host Bayer Leverkusen, in what will be his 200th appearance for the Bavarian giants.
Leverkusen, meanwhile, are hoping to avoid their worst ever start to a Bundesliga season after they lost their opening two games.
"Bayern are the best in the business but we have to go there and seek out chances," under pressure Leverkusen coach Heiko Herrlich told SID, an AFP subsidiary.
Paco Alcacer is hoping to make his first appearance for Borussia Dortmund this weekend after arriving on loan from Barcelona.
Dortmund hope that the former Valencia hitman can be the solution to their problems in the centre-forward position, and fans may see him in action for the first time in Friday's clash with Eintracht Frankfurt.
"Paco links up with team-mates well and is very skillful in front of goal," said Dortmund coach Lucien Favre.
Dortmund will be without USA international Christian Pulisic, who is still struggling with a muscular issue.
Schalke kick off their Champions League campaign next week, having finished second under precocious young coach Domenico Tedesco last season.