Jake Smolinski homered twice for four RBIs, Josh Reddick hit a grand slam and the Oakland Athletics slugged past the Minnesota Twins 14-1 on Sunday.

Billy Butler and Josh Phegley hit two-run homers for the A’s, who hit a season-high five to boost their 2015 total to 80.

Smolinski hit a three-run homer in the eighth and an earlier solo shot for his first career multihomer game. The outfielder was promoted from Triple-A on July 7.

Jesse Chavez (5-9) struck out nine in six innings for his second highest total of the year. He snapped a three-start losing streak with his first victory since June 23 at Texas, escaping a bases-loaded jam in the fourth.

Smolinski followed Butler’s third-inning home run with a solo drive off Tommy Milone (5-2) for his first clout with the A’s. Reddick hit his third career grand slam in the fifth against J.R. Graham.