MLB: Arizona 11, Chicago Cubs 2

PHOENIX, April 29 (UPI) -- Stephen Drew's grand slam homer highlighted a seven-run first inning Thursday that allowed the Arizona Diamondbacks to coast past the Chicago Cubs 11-2.

Chicago starter Ryan Dempster (1-3) retired only one batter before giving way to a series of five relievers who tried to limit the damage in what turned out to be the fourth straight loss for the Cubs.

Chris Young doubled to open the first, Kelly Johnson walked and Justin Upton was hit by a pitch to load the bases. Drew then hit an 0-2 pitch over the wall in right for his second home run of the season.

After Miguel Montero grounded out, Arizona again loaded the bases on consecutive walks to Melvin Mora, Russell Branyan and Gerardo Parra. Barry Enright singled in the fifth run of the inning and Young singled home two more in his second at-bat of the frame to finally knock Dempster out of the game.

Montero added an RBI double in the second and hit a two-run homer in the third.

Enright (1-2) survived 6 2/3 innings to get the easy win. He allowed two runs on five hits with four walks and four strikeouts.