Rapid Reaction: Pirates 2, Cubs 0

CHICAGO -- Here's a quick look at the Chicago Cubs' 2-0 loss to the Pittsburgh Pirates on Friday:

How it happened: A sixth-inning run by the Pirates held up as Russell Martin doubled home Jordy Mercer with the game's first run. Francisco Liriano wasn't perfect, walking five, but he gave up only two hits in seven innings. The Pirates added one in the ninth when Luis Valbuena didn't come home to cut down a runner choosing to go for the double play. Darwin Barney was late covering, and the defense couldn't turn it. The Cubs threatened with two walks in the fourth but Welington Castillo and Starlin Castro couldn't bring anyone home. Travis Wood made one mistake, to Martin, but pitched great once again, lowering his ERA to 2.65. Liriano's is 1.75 now.

What it means: It was a pitcher's day, as cool temperatures and a wind coming straight in limited anything hit in the air. Manager Dale Sveum has tried changing up the lineup, batting Castro seventh again and leading off Barney, but the Cubs couldn't get much going against a very good Pirates staff.

Injury updates: Before the game, Sveum said reliever Shawn Camp was progressing from his toe injury. He threw a bullpen session Friday. There's still no timetable for Tommy John surgery for Kyuji Fujikawa yet, and infielder Steve Clevenger is playing games in the minors but it's not clear when he would return to the big leagues.

Next: Jeff Samardzija takes on A.J. Burnett in Game 2 of the series at 3:05 p.m. CT Saturday.