Flick's tactical approach, featuring an extremely high defensive line, also seemed ripe for Mbappe and Vinicius to pillage with their pace.
Swedish prosecutors on Tuesday confirmed an investigation had been launched -- without naming Mbappe -- following an alleged rape at a plush Stockholm hotel on October 10.
Los Blancos take on their rivals without the French forward, ruled out for three weeks with a hamstring injury.
The format may be new, but few would bet against the winner staying the same.
The 2018 World Cup winner almost joined Caen as a teenager before eventually signing for Monaco.
The France captain, to his credit, was sublime in creating the goal that beat Austria 1-0, but his failure to score at a Euros will weigh heavily on a player who has found the net 12 times at World Cups, including a hat-trick in the 2022 final.
"The Euros is very important in our careers, but we are citizens first and foremost and I don't think we can be disconnected from the world around us," said Mbappe.
Mbappe, 25, verbally agreed to move to Real in February and then announced in May he would leave PSG at the end of the season.
PSG's decision to withhold Mbappe's salary is related to an agreement between the two parties made last year, at the start of the season, when the player accepted to waive part of a bonus due to him, the source said.
Lionel Messi will embark on Tuesday on what will surely be his last chance to win the World Cup, with Argentina and holders France both in action in Qatar.
You are what you eat – how true is this statement? Well, whether or not it reflects on us ordinary individuals, for athletes, this directly reflects on their performance. So, what are the top players in the world eating for such power-packed performance on the field?
Kylian Mbappe loves nothing more than carrying the weight of a team on his shoulders and there is evidence he will need to do just that when France start the defence of their World Cup title
Kylian Mbappe scored two goals to help Paris St Germain to a comfortable 3-0 win at Ajaccio on Friday, maintaining their unbeaten run in Ligue 1 this season.
Paris St Germain manager Christophe Galtier said forwards Neymar and Kylian Mbappe share a "very good" relationship, amid reports of a rift between the pair following an incident in their Champions League game this week.
French football giants Paris Saint-Germain faced an angry backlash Tuesday after coach Christophe Galtier and star player Kylian Mbappe mocked a suggestion that they should take the train rather than private planes for short-haul travel.
Kylian Mbappe and Neymar have enjoyed a prolific start to Paris St Germain's new Ligue 1 season and even though they squabbled over who should take penalties, the France forward insisted they had a good relationship.
A leaner and fitter Lionel Messi, similarly rejuvenated Neymar and Kylian Mbappe staying after signing a new contract makes Paris St Germain runaway favourites to retain their Ligue 1 title when the French league season kicks off on Friday.
Real Madrid president Florentino Perez insisted that Paris St Germain forward Kylian Mbappe was not on the club's minds as they celebrated a record-extending 14th European Cup crown after victory against Liverpool in Paris on Saturday.
Neymar says he would like to stay at French champions Paris Saint-Germain despite rarely justifying his world record fee of 222 million euros ($236 million) and amid rumours the club would like him to leave.