At Barcelona, everything went through Lionel Messi. Whereas at PSG, Kylian Mbappe was the focal point of the Qatari project. Messi was nowhere near as successful at the Ligue 1 club.

But Mbappé was frustrated because he felt promises to sign key players were not kept. When he signed the new deal, he was paraded in front of fans holding up a jersey with 2025 on it. Mbappé was ...