Chicago: The Cubs snapped their first mini-losing streak of the season by beating Pittsburgh and the White Sox buried the Yankees as Chicago’s teams continued to lead the way in Major League Baseball on Friday. The National League Cubs extended their recent domination of the Pirates, winning 9-4 at Wrigley Field to improve their majors-leading record to 26-8 after suffering a two game slide — both games of a doubleheader against San Diego on Wednesday. In New York, Chris Sale became the major leagues’ first eight-game winner as the White Sox beat the Yankees 7-1 to go 24-12, the second best record in baseball. The Cubs ended Pittsburgh’s season in the wild-card game last year, and the closest the Pirates have come to their rivals in four games this season is four runs.