PITTSBURGH -- It was hard to tell Matt Garza had gone exactly 10 months since he last pitched in a major-league game as he worked five near-flawless innings for the Chicago Cubs.
Unfortunately for the right-hander, it took the Cubs' bullpen less than an inning to undo all his good work as Travis Snider's pinch-grand slam in the sixth inning rallied the Pittsburgh Pirates to a 5-4 victory on Tuesday night at PNC Park.
Garza pitched five scoreless innings and allowed only one hit. However, the Pirates then scored five runs in the sixth off three relievers to erase a 3-0 deficit.
Hector Rondon retired only one of the four batters he faced and left the bases loaded for James Russell (1-1) with one out as Neil Walker doubled, Garrett Jones singled and Russell Martin walked. Russell, a left-hander, then walked left-handed hitting Pedro Alvarez to force in Walker with the first run.
Chicago manager Dale Sveum called on Shawn Camp, who got Gaby Sanchez to fly out for the second out. However, Snider then batted for Clint Barmes and hit his first career grand slam into the first row of seats in right-center field to put Pittsburgh up 5-3.
It was Snider's second home run of the season and the Pirates' first pinch-grand slam since Jason Michael hit one off Adam Wainwright at St. Louis in June 2008.
Garza was removed from the game after throwing 82 pitches. He walked three and struck out five. The most he had thrown in minor leagues in his rehab starts was 75 pitches last Thursday in six shutout innings for Triple-A Iowa.
Wandy Rodriguez (5-4) pitched six innings and gave up three runs and six hits, raising his home record to 4-1 this season with his fourth consecutive quality start. He had five strikeouts and no walks.
Jason Grilli got through a rough ninth for his National League-leading 18th save in as many chances, allowing the Cubs to cut the gap to 5-4 on Starlin Castro's two-out single that scored Darwin Barney, who had tripled to cap a 4-for-4 night. Grilli struck out Anthony Rizzo with runners on the corners to end it.
Jordy Mercer went 2 for 2 and was the only Pirates player with multiple hits despite not entering the game until the sixth as a pinch-hitter.
Alfonso Soriano added two hits for Chicago.
Garza also helped the Cubs with his bat as his two-run double capped a three-run second that broke a scoreless tie.
Soriano led off with a single and moved to third on Wellington Castillo's one-out double. One out later, Barney drove home Soriano with a single and then Garza lined a two-run double to right field.
Garza carried a no-hitter into the fifth until Barmes broke it up by lining a one-out single to right.
NOTES: Chicago designated RHP Michael Bowden for assignment to clear a roster spot for Garza. Bowden was 1-2 with a 3.78 ERA in 13 games. ... The Cubs claimed RHP Eduardo Sanchez from St. Louis and optioned him to Triple-A Iowa. He had one save and a 3.72 ERA in nine games with Triple-A Memphis. ... Pittsburgh activated RHP Jose Contreras from the bereavement list and optioned RHP Jared Hughes to Triple-A Indianapolis. ... Pirates CF Andrew McCutchen returned to the lineup after missing Sunday's game against Houston with a sore right knee. ... Pittsburgh LF Starling Marte, who is 6 for 34 (.176) in his last eight games, got the day off and OF Jose Tabata started in left. ... Pirates RHP Charlie Morton (Tommy John reconstructive elbow surgery in June 2012) pitched 4 2/3 innings in a rehab start for Double-A Altoona on Tuesday night and allowed two runs and four hits with two walks and three strikeouts while throwing 80 pitches in an Eastern League game at Reading. He is expected to make one more minor-league start and then be re-evaluated. ... Chicago RHP Jeff Samardzija (2-5 3.49) will start Wednesday night against LHP Francisco Liriano (2-0, 1.64).