Bayern ease past minnows Eintracht
German giants Bayern Munich booked their place in the second round of the DFB-Pokal as they laboured to a 3-0 win over second division Eintracht Braunschweig.
The spot-kicks Mueller earned with darting runs before being hauled down had earlier been converted by fellow German stars Mario Gomez, after nine minutes, and Bastian Schweinsteiger, on 39 minutes.
While Bayern were rarely tested, it was a far from convincing display from Jupp Heynckes' side, who open their Bundesliga campaign on Sunday at the Allianz Arena against Borussia Moenchengladbach.
"My team looked very confident," said Heynckes. "We put in a first-class performance and stuck to our plan."
Bayern, who were without both star wingers Arjen Robben and Franck Ribery, avoided becoming a fifth Bundesliga casualty after Bayer Leverkusen, VfL Wolfsburg, Freiburg and Werder Bremen all suffered first-round shocks over the weekend.
Leverkusen and six-time cup winners Bremen were both eliminated at the first hurdle on Saturday as Leverkusen, who were Bundesliga runners-up last season, were sent packing by second division newcomers Dynamo Dresden.