By Avi Creditor The two World Cup-bound sides will meet in a friendly at Children’s Mercy Park as part of the preparation for Qatar. The U.S. men’s national team’s June window is fully booked, with a date against World Cup-bound Uruguay the final piece of the puzzle. The window, which is the penultimate gathering for the U.S. prior to the start of the World Cup in November, will comprise two friendlies and two Concacaf Nations League group games. It opens June 1 in Cincinnati against another World Cup-bound squad, 24th-ranked Morocco, before heading south to Kansas City, Kan., where the U.S. a…