The Germany international played a key role as the Bavarian club came from 2-0 down to beat the Italian giant, and he has now joked about his side's painful motivation.
Thomas Muller has joked that Pep Guardiola threatened to cut off the balls of his Bayern Munich players if they lost to Juventus in the Champions League round of 16 on Wednesday.
Bayern staged a remarkable comeback to qualify for the quarterfinals, as the club came from 2-0 down to win 4-2 and seal a 6-4 aggregate victory over Massimiliano Allegri's men.