MUNICH (AP) Robert Lewandowski scored twice against his former club to help Bayern Munich return to form with a 4-0 rout of Borussia Dortmund in the Bundesliga's ''Klassiker'' on Saturday.
Dortmund defender Mats Hummels' own goal in the 80th minute of his first game back at his former club compounded the visitors' misery in their fifth consecutive heavy defeat in Munich.
Dortmund lost 5-0 in Munich in April, 6-0 last year, 4-1 in April 2017 and 5-1 in October 2015.
Lewandowski got the latest thrashing underway in the 17th minute, heading in Benjamin Pavard's cross after being left in plenty of space by the Dortmund defense.