CHICAGO -- Mark Prior had to wait an extra day to make his 2005 debut.
The game was rescheduled as part of a doubleheader Wednesday starting at 12:05 p.m. CT. Chicago's Kerry Wood will face Jake Peavy in the opener. Prior, activated from the disabled list Tuesday, pitches against San Diego's Brian Lawrence in the second game.
Prior and Peavy had been scheduled to start Tuesday, when the temperature at Wrigley Field was in the upper 40s.
"You'd rather have good conditions," Wood said. "Hopefully, tomorrow we have a nice day and we get both games both games in and we get good pitching."
Prior and Cubs manager Dusty Baker were not available after the rainout was announced.
"I'd have liked to have gotten this one in today," Padres manager Bruce Bochy said.
Prior went on the disabled list March 25 due to inflammation in his right elbow. He made a rehabilitation start for Triple-A Iowa at Albuquerque last Thursday, allowing six runs in the first inning but only one more over the next five.
To clear a roster spot, Chicago optioned right-hander Todd Wellemeyer to Iowa. Wellemeyer, who allowed two runs in 2 1/3 innings with the Cubs, is expected to start Friday for Iowa.
Prior, 30-16 with a 3.08 ERA in 70 career starts, has been on the disabled list three times in the last three years. He missed the two months last year because of an inflamed right Achilles' tendon and an inflamed elbow. He returned June 4 against Pittsburgh and went 6-4 with a 4.02 ERA.
In 2003, Prior injured his right shoulder in a baserunning collision with Atlanta's Marcus Giles on July 11. He continued pitching in the game but gave up six runs in 4 2/3 innings and was placed on the disabled list a few days later. He didn't return until Aug. 5 but went 10-1 with a 1.52 ERA in his final 11 starts, finishing 18-6 with a 2.43 ERA and helping the Cubs win the NL Central.
3B Amaris Ramirez would have not started Tuesday's game because of a recurring groin injury. Baker decided to start Neifi Perez at third because of the wet field and cold. "Hopefully, I'll be all right for the game tomorrow," Ramirez said. "It's not like a soreness, it just wasn't right. I think it's because of the weather."