PHOTOS: MLS stadiums across United States COMMERCE CITY, CO - JULY 29: A general overhead view of the pitch during the 2015 AT&T Major League Soccer All-Star game between the MLS All-Stars and the Tottenham Hotspur at Dick's Sporting Goods Park on July 29, 2015 in Commerce City, Colorado. (Photo by Dustin Bradford/Getty Images)Photo by: Dustin Bradford PHOTOS: MLS stadiums across United States KANSAS CITY, KS - MAY 28: Children wave the American flag before the international friendly match between Bolivia and United States on May 28, 2016 at Children's Mercy Park in Kansas City, Kansas. (Photo by Kyle Rivas/Getty Images)Photo by: Kyle Rivas PHOTOS: MLS stadiums across United States PORTLAND, OR - JULY 21: Siem De Jong #10 of Newcastle United takes a corner during a friendly match against the Portland Timbers at Providence Park on July 21, 2015 in Portland, Oregon. (Photo by Jonathan Ferrey/Getty Images)Photo by: Jonathan Ferrey PHOTOS: MLS stadiums across United States TORONTO - JULY 24: Fans attend the 2008 Pepsi MLS All-Star Game between the MLS All-Stars and West Ham United at BMO Field July 24, 2008 in Toronto, Canada. (Photo by Mike Lawrie/Getty Images)Photo by: Mike Lawrie PHOTOS: MLS stadiums across United States COLUMBUS, OH - AUGUST 20: General view of Columbus Crew Stadium during a game against the Philadelphia Union on August 20, 2011 at Crew Stadium in Columbus, Ohio. (Photo by Jamie Sabau/Getty Images)Photo by: Jamie Sabau PHOTOS: MLS stadiums across United States SANDY, UT - MARCH 12: General view of Rio Tinto Stadium before the Seattle Sounders play Real Salt Lake on March 12, 2016 in Sandy, Utah. (Photo by Gene Sweeney Jr/Getty Images)Photo by: Gene Sweeney Jr. PHOTOS: MLS stadiums across United States HOUSTON, TX - MAY 12: Fans watch the Houston Dynamo play D.C. United during the first half of a MLS game at BBVA Compass Stadium on May 12, 2012 in Houston, Texas. (Photo by Eric Christian Smith/Getty Images)Photo by: Eric Christian Smith PHOTOS: MLS stadiums across United States ORLANDO, FL - MARCH 08: Donovan Ricketts #1 of Orlando City SC kicks the ball during an MLS soccer match between the New York City FC and the Orlando City SC at the Orlando Citrus Bowl on March 8, 2015 in Orlando, Florida. This was the first game for both teams and the final score was 1-1.(Photo by Alex Menendez/Getty Images)Photo by: Alex Menendez PHOTOS: MLS stadiums across United States SAN JOSE, CA - MARCH 06: An overview of Avaya Stadium during a MLS Soccer game between the Colorado Rapids and the San Jose Earthquakes on March 6, 2016 in San Jose, California. (Photo by Thearon W. Henderson/Getty Images)Photo by: Thearon W. Henderson PHOTOS: MLS stadiums across United States BRIDGEVIEW, IL - JUNE 25: Fans watch as the Chicago Fire open their new stadium, Toyota Park, with a game between the Fire and the New York Red Bulls June 25, 2006 in Bridgeview, Illinois. (Photo by Jonathan Daniel/Getty Images)Photo by: Jonathan Daniel PHOTOS: MLS stadiums across United States HARRISON, NJ - MARCH 20: A general view of the field as the New York Red Bulls play the Santos FC on March 20, 2010 at Red Bull Arena in Harrison, New Jersey. (Photo by Mike Stobe/Getty Images for New York Red Bulls)Photo by: Mike Stobe