Prior to the Cubs' home opener, manager Dale Sveum said the Cubs have to step up as an offense and start getting some key hits.

They were unable to do so until the ninth inning Monday afternoon with winds howling straight out at up to 25 mph, falling to the Brewers (2-5) 7-4 in front of 40,083 at Wrigley Field.

The Cubs (2-5) started the game 0-for-6 with runners in scoring position, dropping their season average to .105 (4-for-38) in such situations. A ninth-inning rally plated two runs to help salvage the day offensively, but it was too little, too late as the game was already in hand.

Welington Castillo provided the Cubs' only offense up until the ninth, drilling a two-run homer to center in the second inning.

Edwin Jackson made his Wrigley Field debut as a Cub and surrended four runs in the first -- capped by a two-out, three-run double from Milwaukee first baseman Martin Maldonado -- and a solo tally in the second on a pair of ringing doubles from Norichika Aoki and Ryan Braun. Jackson, the Cubs' big free agent signing in the offseason, settled down after that, closing out his afternoon with four shutout innings.