CNN  —  Every Saturday night throughout the year, Robert Wirehag – a pastor and former youth soccer player for Swedish club IK Sirius – arranges “night football” in Gottsunda, a suburb of Uppsala, Sweden’s fourth-largest city. Uppsala is traditionally known as a peaceful university town roughly 44 miles from the capital of Stockholm, but there are no college students to be seen in the center of Gottsunda on this night. There are, however, plenty of young boys between the ages 12-17 – all of