ST. LOUIS -- Rookie Stephen Piscotty came up with another big hit to pull the St. Louis Cardinals through a tight game Monday night.
The left fielder ripped a one-out RBI double off the left-center-field wall in the bottom of the eighth inning, capping a two-run rally that lifted St. Louis to a 2-1 win over the Cincinnati Reds at Busch Stadium.
Piscotty's double scored pinch runner Peter Bourjos, who entered the game after shortstop Jhonny Peralta tied the score with a single that plated center fielder Tommy Pham. The uprising began with Pham's triple off reliever J.J. Hoover (8-2).
It was the 33rd RBI in 55 major league games for Piscotty, who was called up July 21 from Triple-A Memphis. His two-run double Sept. 9 and a two-run homer Sunday were critical in 4-3 wins over the Chicago Cubs that helped the Cardinals (94-56) maintain their National League Central lead through a losing September.
Jonathan Broxton (3-5) pitched a scoreless eighth for the win, and closer Trevor Rosenthal bagged his 47th save to tie the team's single-season mark. Lee Smith established the record in 1991, and Jason Isringhausen tied it in 2004.
St. Louis upped its division lead over Pittsburgh to 4 1/2 games, pending the outcome of the Pirates' game in Colorado.
Neither starter was involved in the decision despite pitching well enough to merit a win. Cincinnati rookie John Lamb worked six shutout innings in the team's first quality start since Sept. 12, allowing five hits with one walk and six strikeouts.
Cardinals left-hander Jaime Garcia pitched seven innings, yielding five hits and a run with two walks and five strikeouts.
The Reds (63-86), who fell to 3-4 on their nine-game road trip, owned a 25 1/3-scoreless-inning streak in St. Louis prior to Peralta's game-tying single.
Cincinnati initiated the scoring in the top of the first inning as second baseman Brandon Phillips looped a single to right that scored center fielder Jason Bourgeois.
Garcia steadied after the first, mowing down 13 of 14 hitters after Phillips' hit. He erased the only baserunner in that stretch -- Phillips' leadoff single in the fourth -- by inducing a 5-4-3 shattered-bat double play from third baseman Todd Frazier two pitches later.
NOTES: St. Louis C Yadier Molina (left thumb) has a partially torn ligament and won't play until at least Saturday, when the injury is supposed to be re-evaluated. Molina was injured in the eighth inning of Sunday's 4-3 win at the Chicago Cubs. ... The Cardinals bought the contract of C Travis Tartamella from Triple-A Memphis, giving them a third catcher, and designated 1B Xavier Scruggs for assignment. ... Cincinnati CF Billy Hamilton (right shoulder) rejoined the team Monday but wasn't in the starting lineup for the sixth straight game.