On the evening of July 30, it appeared that calamity had befallen the Astros.
Yordan Álvarez was on the ground writhing in pain. He had just fouled a ball off his knee. Based on the visible agony he was in, it seemed that he suffered a potentially significant injury. His knee history gave the notion credence.
But only a few minutes later, disaster had been averted. Álvarez was on his feet walking around. He was OK.
Shortly after, the Cuban slugger resumed his at-bat and proceeded to hit a 111-mph missile to deep center field.