Two of the most valuable feet on the planet are burning. It’s a stifling mid-June afternoon and Erling Haaland, the superstar Manchester City striker from Norway who looks like Thor but sometimes celebrates goals by meditating in the lotus pose, is walking on the piping hot sand in Boca Raton, Fla. The heat is so intense that I start skittering to the wet sand in desperate need of relief, but Haaland, who has insisted on removing his sandals, simply saunters to a cooler stretch of seashore. “No