Hockey players? Yes. Curlers? You betcha. But one doesn’t tend to think of Canada as an incubator for tennis talent. That will change, though, if Raonic, 20, continues moving up the Association of Tennis Professionals rankings. Listed at a lowly No. 156 to start the year, Raonic improved his fitness, dialed in his titanic serve, and bolstered his confidence. By Wimbledon, he was ranked in the top 25—enough to both establish him as the highest-ranked Canadian male ever and make American tennis fans in Arthur Ashe Stadium wonder: How do we get one of those?