Javier Baez hit a grand slam, Kris Bryant homered and the Chicago Cubs beat the Cincinnati Reds 9-5 Thursday to complete a three-game sweep.

Chicago outscored Cincinnati 25-15 in the series and has 23 wins in its last 28 games against the Reds.

Baez had three hits and a season-high five RBIs. He capped a five-run first inning against Amir Garrett (3-3) with his third career slam.

Bryant hit his eighth homer this season in the fourth, a solo drive, and the Cubs took a 9-0 lead in the fifth.

Jon Lester (2-2) improved to 11-0 in his last 15 regular-season home starts, allowing three runs and six hits in six-plus innings. He left with a 9-1 lead after giving up singles to Jose Peraza, Tucker Barnhart and Arismendy Alcantara in the seventh.

Cincinnati has lost six straight, its longest skid since dropping 11 in a row last May. Recalled from Triple-A Louisville, Garrett gave up six runs and five hits in four innings.

Chicago led 9-4 in the ninth before Brian Duensing hit Joey Votto on the back, loading the bases with no outs. Koji Uehara retired Adam Duvall on a sacrifice fly, then struck out Eugenio Suarez and Stuart Turner, both on three pitches, for his first save this season.