NEW YORK--(BUSINESS WIRE)--Major League Soccer today announced the launch of Walmart Saturday Showdown, spotlighting a marquee MLS matchup each Saturday throughout the regular season and establishing a consistent appointment-viewing experience for fans. Walmart Saturday Showdown will debut during the league's Opening Weekend with one of the season's most anticipated matchups, as defending MLS Cup champion Inter Miami CF takes on Los Angeles Football Club at the historic Los Angeles Memorial Coliseum on Satu ...