Houston Astros star Yordan Alvarez achieved a historic feat in the first inning of his team's 10-8 victory over the Kansas City Royals on June 12, 2026, at Kauffman Stadium. Alvarez launched both a two-run home run and a grand slam, marking him as only the eighth player in MLB history to hit such a combination in a single inning. His initial blast gave the Astros a 2-0 lead against Royals starter Luinder Avila, and after the Royals brought in Mason Black, Alvarez returned to the plate with the bases loaded, hitting a grand slam to extend the lead to 9-0. This exceptional offensive performance contributed to the Astros' dominant first inning, despite the Royals scoring five runs in response. Alvarez finished the game 3-for-5 with six RBIs, tying for the MLB lead in home runs with 24.