Jake Arrieta tuned up for the National League Wild Card Game presented by Budweiser, striking out seven over six scoreless innings, and Anthony Rizzo drove in three runs, including one on his 31st home run, to power the Cubs to a 6-1 victory Friday night over the Brewers. Arrieta finished the regular season with a 0.75 ERA since the All-Star break, the lowest ERA in the second half in Major League history.