Does the Astros-Yankees Doubleheader on July 21 require two tickets

I noticed there's a doubleheader later this month on July 21 at 12:10 pm and 5:40 pm. Haven't gone to one of those since the Astrodome days. Is that going to be a single ticket doubleheader, or since it's the Yankees, will they make you buy two tickets to go to both games?