Kylian Mbappe, celebrated as one of the world’s best players, has found himself in unfamiliar territory—not on the pitch, but as a club owner. The French superstar, who took an 80% ownership stake in Ligue 2 side Caen in July 2024 through his investment firm Coalition Capital, is facing growing discontent from fans of the storied club. Once heralded as a feel-good story of a soccer icon giving back...