The attacking duo are believed to have come to blows during the Bavarians' victory over Los Blancos in the Champions League earlier this week and the club has taken measuresFranck Ribery has allegedly been fined €50,000 for punching Bayern Munich team-mate Arjen Robben in the dressing room during half-time in the 2-1 win over Real Madrid on Tuesday night, according to Bild.
The France international is believed to have lashed out at his attacking colleague due to not being allowed to take a free-kick in the 40th minute.
The mark on the Dutch winger's face was evident and the club has acted quickly to punish the perpetrator.
Despite Jupp Heynckes denying the incident had happened, the German newspaper indicate that Ribery has been given the sizable fine as punishment.
Bayern Munich face Werder Bremen at the weekend before the return leg of their semi-final tie with Real Madrid next Wednesday.