PITTSBURGH — The St. Louis Cardinals have to wait at least one more day to break out the champagne after rain postponed Tuesday night’s game in Pittsburgh.

Considering the rest of the good news that greeted the team with the best record in the majors on Tuesday, the Cardinals can handle the wait.

St. Louis can wrap up a third straight NL Central title on Wednesday if it takes either game of a day/night doubleheader. The Cardinals will start Michael Wacha (17-6, 3.15 ERA) in the opener against Pittsburgh’s Gerrit Cole (18-8, 2.60) and send Tyler Lyons (2-1, 3.96) to face Charlie Morton (9-8, 4.54) in the second.

Rookie outfielder Stephen Piscotty was discharged from the hospital early Tuesday, an encouraging sign following a frightening collision with teammate Peter Bourjos in Monday night’s 3-0 victory. And ace Adam Wainwright is expected to be activated on Wednesday after spending five months on the disabled list with a torn left Achilles.

The Pirates, meanwhile, need a sweep on Wednesday to keep their slim hopes of avoiding the wild card for a third straight October. Pittsburgh wasted a chance to pull within two games of St. Louis on Monday when the Pirates left 16 runners on base and gifted the Cardinals a go-ahead run in the ninth when right fielder Gregory Polanco overran a line-drive single by Jon Jay, allowing Matt Carpenter to score from first.