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.
Kylian Mbappe said Liverpool were one of the clubs he spoke to before deciding to extend his stay at Paris St Germain, and that he had also met with the Premier League side in 2017 when he was still at Monaco.
France forward Kylian Mbappe said he "can imagine" Real Madrid's disappointment after rejecting them to sign a contract extension with Paris St Germain, adding that he will be supporting the Spanish side in the Champions League final against Liverpool.
Kylian Mbappe's decision to stay at Paris Saint-Germain confirms the Qatar-backed club's position of power within European football but also means the superstar striker is likely to wield huge influence as they rebuild for another assault on the Champions League.
All eyes were on the Parc des Princes for the announcement that Mbappe had signed a new three-year deal with the French champions, who demolished Metz 5-0 with the France forward scoring a hat trick to finish Ligue 1 top scorer with 28 goals.
Paris Saint-Germain's extension deal with Kylian Mbappe is "an insult to football," La Liga president Javier Tebas said Saturday after the player reportedly rejected an offer from Real Madrid.
The two most expensive players in the world were unable to outshine the prolific Erling Braut Haaland as the Norwegian sensation continues his remarkable rise by scoring both goals in Borussia Dortmund's 2-1 defeat of Paris Saint-Germain in their Champions League first-leg encounter
Kylian Mbappe scored two goals in four second-half minutes to send France into the World Cup quarter-finals with a thrilling 4-3 win over Argentina on Saturday.
Pep Guardiola confirms Manchester City are "still looking" to add to their £200 million summer spending spree, although he refuses to comment on the possibility of hijacking Real Madrid's move for Kylian Mbappe.
