The Loons employ and embrace the most-diverse roster among Minnesota’s professional sports teams. For instance, at Wednesday’s practice in Blaine, the majority of the 25 players on the field were legal immigrants to the U.S. As that training session started at the National Sports Center in Blaine, the players jogged together as a collective group, but they really represented a melting pot. The eclectic team includes a talented trio from Argentina and a trio of tough defenders composed of players from Panama, Germany and Colombia. Also in the mix: the club’s grizzled captain from New Zealand; a promising young attacker hailing from Sierra Leone; a gregarious glue guy from South Africa;...