Best vs best: MLS Cup final pits LAFC, Philadelphia Union

LAFC and Philadelphia Union are playing for the MLS Cup on Saturday. They finished the regular season with identical point totals and topped their respective conferences. LAFC won the Supporters' Shield, but Philadelphia had a superior goal differential. LA FC is seeking to become only the second team in the past 11 years to win both the supporters' shield and the championship trophy. Philadelphia's foundation is built on the products of its innovative player academy. The Union's starting lineup costs a fraction of LA's. It's a team that has won three of the last four Supporters’ Shield trophies.