CHICAGO (AP) — Derrek Lee took a curtain call after his second homer, a grand slam that gave him a career-high seven RBIs on a night when the baseball seemed to be coming at a different speed.

‘‘Just some nights the game seems like it slows down a little bit and tonight was one of those nights,’’ Lee said after leading the Chicago Cubs to a 9-5 win over the Milwaukee Brewers in the opener of an 11-game homestand. The Cubs also got homers from Geovany Soto and Jake Fox as their erratic offense showed some spark against Brewers starter Seth McClung and reliever Chris Smith.

‘‘It makes it fun to hit when everyone is swinging the bats well. There are guys on base and pressure on the pitcher,’’ Lee said. ‘‘Tonight is a great night, but we’re right back here tomorrow at 1. ... So, turn the page.’’

Lee drove his 10th career grand slam off Smith in the fourth after connecting for a three-run shot off McClung in the first.