Addison Russell hit a three-run homer and Miguel Montero added a solo homer for the Cubs, who still have baseball's best record. Justin Bour — who hit a grand slam in the Cubs' win on Friday that snapped Chicago's four-game losing streak — hit his 14th home run and drove in three more for Miami. Bour's homer in the fourth got Miami within 4-3, and then Ichiro Suzuki kick-started the Marlins' big fifth inning with an infield single. Cubs starter John Lackey (7-4) gave up a season-high seven runs in 4 1-3 innings, and it's almost like he knew Suzuki's infield single would be trouble — smacking his glove and shouting in frustration after he reached. Suzuki took second when Russell's throw squirted away from Cubs first baseman Anthony Rizzo, and scored two pitches later on Martin Prado's double. Stanton drove in Prado with a single that chased Lackey and put Miami up 5-4, Bour greeted reliever Gerardo Concepcion with an RBI double, and Derek Dietrich's sacrifice fly made it 7-4. That became the third position (joining catcher and first base) that he's played in a very hectic opening eight games of his MLB career.