The former BVB keeper warned the 21-year-old to expect a hostile reception when he returns to his old stomping ground, while also backing Cristiano Ronaldo for the Ballon d'OrBorussia Dortmund goalkeeper Jens Lehmann has advised Bayern Munich's Mario Gotze to wear ear plugs on his return to Signal Iduna Park on Saturday.
The 21-year-old attacking midfielder left BVB for the Allianz Arena last summer in a controversial €37 million transfer and is now set to go back to his old home for a top-of-the-table Bundesliga clash, having sat out the Supercup clash between the two sides at the start of the season through injury.
Lehmann is certain that the Westfalenstadion faithful will give their former hero a rough reception and feels Gotze should try to keep a low profile.
"I'd advise Gotze to wear ear plugs," the ex-Arsenal shot-stopper said on Sky Deutschland.
"Thanks to the group dynamic on the Sudtribune, many of the fans will boo him mercilessly. He should avoid taking throw-ins or corners."
Lehmann went on to play down Franck Ribery's importance in the Bayern team, instead giving his Ballon d'Or backing to Real Madrid star Cristiano Ronaldo.
"There are more important players for Bayern. He was given the Best Player in Europe award, which I found surprising. I think Ronaldo should win it; he deserves it."
Borussia Dortmund and Bayern kick off at 18:30CET on Saturday, with the Bavarians hoping to go seven points clear of their principal title rivals.