NEW YORK -- The New York Yankees announced that tonight's game against the Chicago Cubs has been postponed because of rain and will be made up tomorrow as part of a day-night separate-admission doubleheader.

Starting pitchers have not been announced but it is likely Masahiro Tanaka, tonight's scheduled starter, will go tomorrow along with Michael Pineda, although the club has not yet announced who will start which game.

Also postponed is the dedication ceremony for a plaque commemorating Nelson Mandela to be displayed in Monument Park; that ceremony will now be held on the field prior to the second game of the doubleheader, scheduled for 7:05 p.m.

Tickets for tonight's game will be honored at tomorrow's 1:05 p.m. game or for any regular-season game at Yankee Stadium within 12 months of tonight's postponement. However, tickets for tomorrow night's second game will not be honored at the 1:05 game.

For a complete explanation of the Yankees rainout policy, visit www.yankees.com/rainout.