The Collective Bargaining Agreement rule that allows clubs a 26-man roster for day-night doubleheaders only applies if the twin bill is scheduled at least 48 hours in advance. So, it would not apply on Saturday, with the Dodgers and Orioles set to play two after Friday night's rainout. Manager Don Mattingly said on Saturday he didn't know why the rule change was designed that way, and came up with a hypothetical situation where it would have been handy.