ORLANDO, FL - JULY 30: Philadelphia Union forward Sergio Santos (17) scores his 1st goal of the game during the MLS Is Back Tournament Quarterfinal between the Philadelphia Union v Sporting Kansas City on July 30, 2020 at the ESPN Wide World of Sport (Getty Images)LAKE BUENA VISTA, Fla. - Jamiro Monteiro and Sergio Santos scored two minutes apart midway through the first half, Santos added a second goal just before halftime and the Philadelphia Union reached the semifinals of the MLS is Back tournament with a 3-1 victory over Sporting Kansas City on Thursday night.Philadelphia’s perfect run in the tournament continued thanks to its first-half scoring blitz.