Bayern staged a remarkable comeback to qualify for the quarter-finals, as they came from 2-0 down to win 4-2 and seal a 6-4 aggregate victory over Massimiliano Allegri's men.
Goals from Paul Pogba and Juan Cuadrado gave Juve the lead at half-time, leading former Germany captain Franz Beckenbauer, in his role as a pundit for Sky, to speculate that Guardiola would "neuter" his players if they failed to overturn the deficit.
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Goals from Robert Lewandowski, Muller, Thiago and Kingsley Coman ensured that no such punishment was forthcoming, and Muller joked that Beckenbauer was very close in his prediction of Guardiola's half-time team talk.
"Yeah, very similar. He didn't say "neuter", but he said he will cut our balls," he replied, when asked for his reply to the World Cup winner.
Following their victory Bayern join Wolfsburg, Real Madrid, Benfica, PSG, Atletico Madrid, Manchester City and Barcelona in the draw for the quarter-finals, which takes place on Friday.