Kylian Mbappe looks on during the French League One soccer match between Paris Saint-Germain and Lens at the Parc des Princes stadium in Paris, Saturday, Aug. 26, 2023.

Video. Real Madrid likely to sign Mbappé after he calls it quits with PSG

A bidding war is expected to follow French football star Mbappé's announcement that he will leave Paris Saint-Germain at the end of the season.