Injured Bayern starlet Karl to miss Real return leg
Karl, 18, is expected to be out for around three weeks and will miss Saturday's Bundesliga match at St Pauli along with the Real clash.
Karl watched from the bench as Bayern beat Real 2-1 in Madrid on Tuesday but became the youngest player in Champions League history to score in three successive matches earlier this season
The versatile forward impressed since making his debut at the start of the season and earned a first senior Germany call-up in March. He has nine goals and seven assists in all competitions this campaign.