Kylian Mbappé already knows how to leave defenders behind on a soccer field. But if the Real Madrid forward ever traded the pitch for an NFL stadium, he has a pretty good idea of where he would line up: as a wide receiver.  The France captain made the declaration during an NFL video released Friday, documenting his meeting with Atlanta Falcons running back Bijan Robinson at Clairefontaine, France’s national soccer training center. Robinson arrived with the equipment Mbappé would need for his American football debut: a Falcons jersey, shoulder pads and a helmet. The French superstar did not hesitate when offered the chance to suit up.