The Rays reassigned Casali to their minor-league camp Sunday.
Casali joined the Rays just days earlier on a minor-league deal after being released by the Rangers. Though he won't open the season in the big leagues, Casali will likely be first in line for a promotion to the Rays if one of the team's top two catchers, Wilson Ramos and Jesus Sucre, succumbs to an injury at any point.