Jon Lester hit a three-run homer that highlighted an eight-run burst in the second inning and wound up with his NL-leading 11th win as the Chicago Cubs held off the Minnesota Twins 11-10 on Sunday.
Ian Happ also homered for the Cubs, who have scored at least 10 runs in four straight games for the first time since 1930. Chicago swept the three-game series and has won four in a row overall.
Lester (11-2) allowed four runs, two of them earned, and nine hits in five-plus innings.
Javier Baez, who doubled twice, Happ and Willson Contreras each had three hits for the Cubs.
Mitch Garver hit a two-run homer off reliever Dillon Maples as the Twins scored five times in the eighth. Maples, called up from Triple-A before the game when pitcher Brian Duensing went on the disabled list with a sore left shoulder, also allowed an RBI single to Logan Morrison and a two-run triple to Willians Astudillo.
Cubs closer Brandon Morrow got one out in the eighth and pitched a scoreless ninth for his 18th save in 19 chances.
Brian Dozier hit a two-run homer and Jake Cave also homered for the Twins. Minnesota concluded a 1-5 Chicago road trip that began with two losses in three tries to the White Sox, and fell 10 games below .500 for the first time this season.
In the third consecutive sweltering day at Wrigley Field with a gametime temperature at 93 degrees and a heat index at 101, the Cubs jumped all over Twins starter Lance Lynn (5-7) in the second inning.
Lester hit his second career home run, prompting a curtain call from the cheering fans. Baez doubled home two runs and Anthony Rizzo had an RBI double. Kyle Schwarber met reliever Matt Magill with the Cubs' third straight double.
Cubs shortstop Addison Russell added an RBI single in the fourth inning and made a highlight grab in the sixth inning before leaving the game with an apparent injury resulting in the catch. Russell bumped into Baez while making the running catch on Eduardo Escobar's ball down the left-field line in foul territory. He walked off the field and into the dugout after talking to a team trainer and manager Joe Maddon.
RHP Kyle Hendricks (5-8) will try to bounce back from his shortest outing of the season on Tuesday against the Tigers.