The Adidas NBA 5 United Tour, a circuit around Europe organized by the National Basketball Association of the U.S. that includes 5-on-5 tournaments, pick-up games and interactive events, has announced the host cities. The tour will kick off in Athens on June 20-21 and then head to Madrid, Rome and Istanbul before winding up in London on Sept. 12-13. Male and female players over the age of 10 are invited to form teams to participate. EA Sports and Coca-Cola are also working with the tour.