Wanner was 16 years and 15 days old when he stepped on to the field for Bayern Munich in a Bundesliga match against Borussia Mönchengladbach.
Borussia Dortmund beat Eintracht Frankfurt 3-2 in the Bundesliga fixture on Saturday.
Record-German champions Bayern Munich will host traditional rivals Borussia Mönchengladbach as Bundesliga resumes on Friday.
The referee had denied Dortmund's penalty appeals and later awarded Bayern a penalty after Mats Hummels was adjudged to have handled the ball.
Bayern Munich defeated rivals Borussia Dortmund 3-2 in a thriller courtesy of a brace from Robert Lewandowski in the Bundesliga fixture at Westfalenstadion on Saturday.
Liverpool and Ajax are through to the Champions League round of 16 with wins on Matchday 4; Manchester City, Real Madrid also register wins.
The 21-year-old hasn't scored a goal and registered an assist since joining Manchester United from Borussia Dortmund this summer.
Borussia Monchengladbach beat Borussia Dortmund 1-0 in a Bundesliga fixture at Borussia Park on Saturday.
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