PSG visited Bayern's Allianz Arena on Tuesday and a section of the home support unveiled a banner with a profanity aimed at the "plutocratic Al-Khelaifi".
"We concede a lot of goals because we are not stable," complained Guardiola.
Bayern Munich striker Harry Kane hit back at criticism levelled at him, saying he would do his "talking on the pitch" after becoming the fastest to 50 goals in Bundesliga history on Friday.
The German giants, who went without a trophy last year for the first time since 2012, are primed for a return to the winner's circle.
Struggling in Europe after back-to-back losses left them outside the knockout places, Musiala broke through the stubborn Benfica defence, heading in a Harry Kane assist.
Bayern Munich will learn from their 4-1 Champions League defeat to Barcelona but the German team's belief in a successful season is intact, coach Vincent Kompany said on Saturday ahead of Sunday's league game against VfL Bochum.
Bayern Munich coach Vincent Kompany and his Bayer Leverkusen counterpart Xabi Alonso on Friday joined the growing chorus calling for action on player workload, amid talks of strikes.
A street next to Bayern Munich's Allianz Arena stadium will be renamed to honour German football great Franz Beckenbauer who died earlier this year, the city council announced Thursday.
"Something big is coming," Neuer told reporters ahead of Tuesday's opening clash with Dinamo Zagreb at home.
Manchester City will take on Bayern Munich in the most intriguing quarterfinal of the Champions League this season.
Eintracht Frankfurt coach Oliver Glasner said Wednesday that Napoli are on the same level as Bayern Munich after his team were knocked out of the Champions League by Serie A's runaway leaders.
Two goals from Benjamin Pavard and a first in Bayern Munich colours for Joao Cancelo saw the Bundesliga leaders romp to a 5-3 home victory over Augsburg, placing the onus back on challengers Borussia Dortmund who play later on Saturday.
Paris St Germain forward Kylian Mbappe may be among the most exciting footballers in the world to watch but Bayern Munich will not be spending time admiring his skills when they meet on Wednesday in the Champions League last-16 second leg.
The 30-year-old forward has handed the German champions a much-needed boost a week ahead of their top of the table clash with Union Berlin
Kroos has won the Champions League five times – once with Bayern Munich and on four occasions with Real – but he thinks a Super League could be good for European soccer
Speaking at an event in Hanover, Hoeness said traditional clubs such as Bayern could fall behind football's elite and urged German club ownership rules be relaxed to allow teams to attract outside investors.
"We have to remember the final part of the game; we're behind but we saw that we were able to cause them trouble. We need all our players to be healthy and go there to win and qualify," said Mbappe, who was back after a two-week injury layoff.
Coman's goal at the Parc des Princes came three years after he scored the winner for Bayern in the final against PSG in a virtually empty pandemic-era stadium in Lisbon.
"We know our strengths and we have to call on them. Our team consists of great footballers. We are defensively stable and up front it's all about one thing - attack."