Shota Imanaga pitched seven crisp innings and the Chicago Cubs ended Ildemaro Vargas’ 27-game hitting streak while blanking the Arizona Diamondbacks 2-0. Ian Happ homered, tripled and doubled for the Cubs, who extended their winning streak at Wrigley Field to 10 games, their longest at home since 2008. Vargas had hit safely in 24 games to start this season and three to end last season. He went 0 for 4, grounding out to shortstop against Ben Brown in his final opportunity as the Diamondbacks lost their third straight. Imanaga allowed four hits, struck out five and walked one on 87 pitches.