The answer is 14 plus one supermodel girlfriend and one angry, green superhero.
Winner stays when he risks everything, just when it matters the most. That is the message of this star-studded World Cup commercial, fast on its way to viral glory.
In Nike's latest advert, a bunch of teens begin a football match that is accelerated straightaway with opposing team members declaring "I'm Cristiano Ronaldo" and "Yeah? Well, I'm Neymar." They are instantly transformed into the players themselves with a roll call of Nike-sponsored pitch celebrities joining the match as play progresses - Wayne Rooney, Zlatan Ibrahimovic, Gonzalo Higuain, Eden Hazard, Gerard Pique, Andrea Pirlo, Andres Iniesta, Mario Gotze, Thiago Silva, Thibaut Courtois, Tim Howard and David Luiz.
The four minutes of fast-paced football action that follows captures the frenzy, the passion and the beauty of the sport.
The surprise package is a cameo by Ronaldo's model girlfriend, Irina Shayk. There's also The Incredible Hulk, who's outsized aggression seems just right for the pitch, basketball star Kobe Bryant and martial artists Jon Jones and Anderson Silva.
Video courtesy: YouTube