02 July 2016: Philadelphia Union midfielder Tranquillo Barnetta (10) and Houston Dynamo midfielder Collen Warner (26) fight for ball during the MLS soccer match between Philadelphia Union and Houston Dynamo at BBVA Compass Stadium in Houston, Texas. (Photograph by Leslie Plaza Johnson/Icon Sportswire via Getty Images)

02 July 2016:  Philadelphia Union midfielder Tranquillo Barnetta (10) and Houston Dynamo midfielder Collen Warner (26) fight for ball during the MLS soccer match between Philadelphia Union and Houston Dynamo at BBVA Compass Stadium in Houston, Texas. (Photograph by Leslie Plaza Johnson/Icon Sportswire via Getty Images)