The Detroit Tigers' game against the Chicago White Sox on Wednesday was postponed because of rain in Chicago. A makeup date wasn't announced. Detroit's Armando Galarraga, scheduled to start Wednesday, will take the mound tonight. Tigers manager Jim Leyland said he'll skip Zach Miner's scheduled start. White Sox manager Ozzie Guillen said he will back up his pitching rotation one day, with scheduled starter Mark Buehrle set to start tonight.