PITTSBURGH -- Anthony Rizzo stole the spotlight from Gregory Polanco with three extra-base hits, three runs scored and three RBIs to lead the Chicago Cubs to a 7-3 victory over the Pittsburgh Pirates on Tuesday night.

The Chicago first baseman hit his 13th home run of the season and two doubles.

Polanco, the Pirates highly touted right fielder, went 1-for-5 with a strikeout in his major league debut. He was recalled earlier in the day from Triple-A Indianapolis, where was leading the International League with a .347 batting average.

Pinch-hitter Luis Valbuena's two-run double off rookie reliever Casey Sadler (0-1) broke a 3-3 tie in the sixth inning and put Chicago ahead for good, making the Cubs 11-22 on the road. Valbuena and left fielder Junior Lake had two hits apiece.

Cubs left-hander Travis Wood (6-5) allowed three runs and nine hits in 6 2/3 innings to get the win. His road ERA was 8.04 in six starts prior to Tuesday.

Pirates center fielder Andrew McCutchen hit a two-run home run for the Pirates, his five in June in nine games. He hit a combined four homers in April and May.

Pittsburgh catcher Russell Martin and left fielder Starling Marte also had two hits.

Pirates starter Francisco Liriano left the game in the fourth inning with discomfort in his left side. The left-hander allowed two runs in three-plus innings and has failed to pitch at least six innings in eight of his last nine starts.

Rizzo doubled home a run in the seventh and scored on a single by shortstop Starlin Castro to push the Chicago's lead to 7-3.

Pinch hitter Jose Tabata drew the Pirates into a 3-3 tie with an RBI single in the bottom of the fourth. The Cubs went ahead in the top half of the inning when Rizzo hit a leadoff double and scored on second baseman Darwin Barney's two-out double.

Rizzo staked the Cubs to an early 2-0 lead with a two-run home run, his 13th of the season, in the top of the first.

McCutchen answered with a two-run shot, his ninth, in the third to tie it at 2.

NOTES: Pittsburgh 3B Pedro Alvarez, despite being one of the Pirates' hottest hitters, was not in the lineup because he is just 1-for-18 in his career against Cubs LHP Travis Wood. In his last eight games, Alvarez is 12-for-31 (.387) with one home run, seven RBIs and seven runs scored. ... Chicago RHP Jose Veras was given his unconditional release Tuesday, one week after being designated for assignment. The 33-year-old went 0-2 with an 8.10 ERA in 12 games. Veras was signed to a one-year, $3.5 million contact in the offseason to serve as the closer but was removed from that role after blowing his first two save opportunities. ... Cubs RHP Jason Hammel (6-3, 2.53 ERA) faces Pirates RHP Brandon Cumpton (1-2, 6.51 ERA) on Wednesday.