SAN DIEGO -- Daniel Descalso hit his first grand slam and drove in a career-high five RBIs, leading the St. Louis Cardinals to a 10-2 rout of the San Diego Padres before 18,702 fans at Petco Park on Tuesday night.
Descalso, who went 3-for-3 with a walk after entering the game with a .197 batting average, drove a 1-2 pitch by reliever Anthony Bass over the right-field wall in the eighth after Padre manager Bud Black issued an intentional walk to Jon Jay to load the bases with one out. It capped the Cardinals' blowout after a four-run fifth gave them a 5-1 cushion.
Adam Wainwright gave up a run in the second, but blanked the Padres from that point on. After a single by Chris Denorfia with no outs in the second, Wainwright retired 15 of the next 16 batters he faced -- the lone runner to reach base until the seventh was Alexi Amarista, who reached on a fifth-inning single.
Wainwright (6-3) won for the first time at Petco, where he had been 0-2 with a 2.57 ERA. He tossed a four-hitter, allowing one run with six strikeouts and a walk in 7 1/3 innings.
Edinson Volquez retired the first six batters he faced, but gave up a run in the third and fell apart in the fifth.
Volquez (3-5) allowed five runs on eight hits, six of those coming in the fifth, with five strikeouts and a walk in six innings. It was the second straight setback for Volquez after he had won his previous three starts.
Jedd Gyorko led off the second by lifting a fly ball to center, which initially appeared to be a routine catch for Jay. But the Cardinals center fielder lost the ball in the twilight, allowing the ball to drop for a double. Gyorko advanced to third on a single to right by Denorfia before scoring when Amarista grounded into a double play for a 1-0 San Diego lead.
The Cardinals tied it in the third as Descalso scored on a double to center by Matt Carpenter that got past Amarista with two outs.
In St. Louis' fifth-inning uprising, Descalso doubled home Jay with no outs before Carlos Beltran drove in Descalso and Pete Kozma for a 4-1 advantage. A ground-rule double to right by Allen Craig scored Beltran to make it 5-1.
NOTES: Cardinals 3B David Freese missed his second straight game with an injured right thumb that required stitches. Freese injured the thumb Sunday when he got spiked tagging out Milwaukee's Norichika Aoki in a rundown. He could return to the lineup Wednesday. ... San Diego LF Carlos Quentin was held out of the lineup Tuesday after tweaking his right knee with an awkward slide at home in Monday's win over St. Louis. Quentin, who is hitting only .178 with four home runs and 14 RBI, is expected to return to the lineup Wednesday. ... St. Louis RHP Eduardo Sanchez was claimed off waivers Tuesday by the Cubs.