The Club Licensing Benchmarking report also revealed that gambling and betting firms are the most common source of shirt sponsorship in 10 European leagues
Franck Ribery scored twice for champions Bayern Munich to beat Eintracht Frankfurt 3-0 on Saturday and climb to second place.
Franck Ribery scored an 83rd minute winner as champions Bayern Munich beat RB Leipzig 1-0 on Wednesday.
Dodi Lukebakio completed a hat-trick in stoppage time to earn Fortuna Dusseldorf a remarkable 3-3 draw at champions Bayern Munich on Saturday.
The Borussia Dortmund winger is also doubtful for the former world champions’ UEFA Nations League match against Netherlands next week.
“Bayern will have to make do without James Rodriguez for the coming weeks,” it said in a brief statement.
The Bavarians, who have won the last six league titles in dominant fashion, have been far from impressive this season, lying in third place on 20 points, four off leaders Dortmund.
Borussia Dortmund needed a Marco Reus penalty late in extra time to beat second division Union Berlin 3-2 on Wednesday and book their spot in the German Cup third round.
They have failed to win any of their previous three Bundesliga matches.