Alex Cobb earned his first win in nearly a year and Andrés Giménez drove in three runs, sending the American League-leading Cleveland Guardians to a 6-1 victory over the Chicago Cubs on Wednesday night.José Ramírez, Josh Naylor and Will Brennan also had RBI for Cleveland, which swept the three-game series and extended its winning streak to five. The Guardians are 72-49 and have the best home record in the majors at 38-20. Cleveland’s current surge began after it lost a season-high seven straight from Aug. 3-9. Cobb (1-1) allowed one run and three hits in 5 2/3 innings with three strikeouts and two walks, picking up his first win since a one-hitter for San Francisco against Cincinnati last Aug. 29. The 36-year-old had left hip surgery last Oct. 31 and was traded to Cleveland on July 30.