Can an athlete be too good to compete fairly in his or her sport? It’s a question asked very occasionally—when a sportsperson such as Roger Federer, in tennis, Tiger Woods, in golf, or Usain Bolt, in sprint, becomes so dominant that pretty much nobody on the planet can beat him.

The season has only recently opened in the world’s most prestigious and richest men’s soccer league, the English Premier League, but a towering, blond, 22-year-old Norwegian is already proving to be so exceptional that sports pundits and fans are wondering if he is “unplayable.”