This combination of pictures shows four key football players in this summer football transfer market, (From Top left to bottom right) Atletico Madrid's French forward Antoine Griezmann, Paris Saint-Germain's French forward Kylian Mbappe, Paris Saint-Germain's Brazilian forward Neymar, and Manchester United's French midfielder Paul Pogba. — AFP   - RESTRICTED TO EDITORIAL USE  / AFP / JAVIER SORIANO AND Anne-Christine POUJOULAT AND Lionel BONAVENTURE AND Paul ELLIS / RESTRICTED TO EDITORIAL USE
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