Diamondbacks at Indians, ppd: The opener of the two-game interleague series between Arizona and host Cleveland was postponed due to rain.The game began as scheduled but was halted with one out in the top of the fourth inning and the Indians owning a 1-0 lead and called after a lengthy delay. The contest will be made up in its entirety as part of a doubleheader on Wednesday, with Game 1 beginning at 4:05 p.m. ET.Left-hander Andrew Chafin will make his major-league debut for Arizona in the opener, while Vidal Nuno (2-8, 5.01 ERA) starts the nightcap. Nuno was slated to pitch Wednesday's regulary scheduled series finale.Cleveland's starter for Game 1 will be Trevor Bauer (4-7, 4.52), who originally was scheduled to oppose Nuno. The host club gives the ball to Josh Tomlin (5-8, 4.68) in Game 2.The Indians gained in the standings without even officially playing, climbing within five games of first-place Kansas City in the American League Central by virtue of the Royals' loss to Oakland. They also moved within 4 1/2 contests of division rival Detroit for the second wild-card spot as the Tigers were defeated by Pittsburgh.