Rapid Reaction: White Sox 1, Cubs 1

CHICAGO -- The White Sox clinched the season series over the Cubs with a 1-0 victory at Wrigley Field on Saturday, setting up a chance for a sweep.

How it happened: Juan Pierre did it again, driving in the winning run for the White Sox for the third consecutive day. On Friday, it was a go-ahead triple and on Thursday it was a go-ahead single off the wall in Colorado. Pierre’s RBI single on Saturday was the first hit off Cubs starter Matt Garza. White Sox starter Phil Humber delivered seven scoreless innings despite not being at his best. He got double-play grounders in each of the first three innings.

What it means: The maturation of Humber continues. He’s shown he can win with his good stuff and now he can apparently compete when he isn’t at his best. Humber was falling behind hitters early in Saturday’s game, but made the clutch pitch when he needed it to induce the double plays. His eight wins and 2.69 ERA seem worthy of an All-Star spot, but he’ll probably be squeezed off the roster.

Outside the box: After entering the game seventh in the AL among starters with a 2.76 ERA, Humber dropped that even further to 2.57.

What’s next: White Sox right-hander Gavin Floyd (6-7, 4.19 ERA) will pitch in the finale of the season series on Sunday, while the Cubs will counter with right-hander Rodrigo Lopez (0-2, 5.40) in the 1:20 p.m. start from Wrigley Field.