Paul Skenes struck out nine in six innings on his 22nd birthday as the Pittsburgh Pirates defeated the host Detroit Tigers, 10-2, in the second game of a doubleheader on Wednesday.Skenes (2-0) allowed two runs and three hits in his fourth major league start.Andrew McCutchen blasted a three-run homer in the third inning on his 1,600th hit with the Pirates. McCutchen, who has played for five different teams in 16 years in the major leagues, also doubled and singled while driving in four runs.Nick Gonzales added three hits, including a solo homer, and drove in two runs.Tigers starter Keider Montero, making his major league debut, gave up four runs and five hits while striking out five in 4 1/3 innings. The right-hander had been pitching for Triple-A Toledo.Matt Vierling hit his fourth homer in three games for Detroit.Vierling smacked a three-run homer and drove in four runs in the opener, an 8-0 Tigers victory. Tarik Skubal and Mason Englert combined for the Tigers’ fourth shutout this season.The Tigers scored a run in the second inning of Game 2. Mark Canha drew a leadoff walk and moved to third on Colt Keith’s single. Akil Baddoo brought home Canha with a sacrifice fly.Pittsburgh took the lead in the next inning on McCutchen’s eighth homer this season. Jared Triolo led off the inning with an infield single and Ji Hwan Bae followed with another hit. One out later, McCutchen launched a 2-2 offering from Montero over the left field wall.