On July 15, 1986 At the Houston Astrodome, the American League wins the 1986 All-Star Game, 3 – 2, for its second triumph in the last 15 years. AL starter Roger Clemens pitches three perfect innings to win the game’s MVP Award. Fernando Valenzuela pitches two innings for the National League striking out his first five batters, including Don Mattingly and Cal Ripken, Jr. and his fellow countryman, Teddy Higuera; it will be Higuera’s only at-bat in the major leagues.

Source
Baseball Reference July 15