It just happens for Mbappe to be able to win an important trophy since the first official game he will play for Real Madrid.I think he will be a lucky player to achieve such feat and I think Real Madrid is more than capable to beat a team like Atalanta which is playing for the first time in their history at such levels.I am confident Real will win the Super Cup as I remember them being down by Napoli a much stronger team than Atalanta and they changed things around within 16 minutes left to play,so based on this I doubt they will have any problems against Atalanta.
The first trophy in the EUFA Super Cup will be closer for Mbappe because it is clear that we know how the statistics of the two clubs are far different, therefore I believe Real Madrid will win it and Mbappe will be played.
From this match because it is clear from our prediction now that Real Madrid will win again... this match will start on August 15 after the league starts in a few days, it is likely that Real Madrid will run this league first.