Argentina vs. Algeria in a Group J opener in Kansas City, Mo. Coach Lionel Scaloni and superstar talisman Lionel Messi run it back with Argentina in search of the first back-to-back World Cup titles since Brazil's in 1958 and '62. Algeria's heart and soul is midfielder Riyad Mahrez, a five-time English Premier League winner who was a part of his country's last World Cup appearance in 2014, which fell valiantly in the round of 16 to eventual-champ Germany.