Orioles left-hander Brian Burres was scheduled to pitch against lefty Mark Buehrle, but a downpour washed the game out in the bottom of the first inning.
The teams will play a day-night doubleheader on Saturday. The first game is scheduled be played at noon and the second at 6:00 p.m.
The White Sox will start left-hander John Danks in the first game against Burres. In the second game, Nick Masset will start for the White Sox against Steve Trachsel.