Astros catcher depth is tested as Caratini lands on a 7-day concussion IL after foul tips to the mask. Salazar is recalled, Diaz is day-to-day with left wrist/hand soreness, and Diaz could miss time while Caratini sits. Salazar may absorb multiple starts as Diaz recovers, aided by Houston's 13-game run without an off day. Alvarez recently returned from a hand injury; Meyers and Dezenzo begin rehab assignments, boosting depth for a Houston lineup that will lean on catching flexibility in the short term.