Jake Arrieta became the ace of the Chicago Cubs' starting rotation back in July when Jeff Samardzija and Jason Hammel were traded. Cubs manager Rick Renteria believes the right-hander has earned that distinction with his pitching. "He's our ace and he's been pitching pretty much like an ace," Renteria said. "He's got that kind of stuff. He's been carrying us deep into ballgames. Typically, an ace has both of those qualities, carrying you deep and having stuff." Arrieta pitched seven strong innings to outduel St. Louis' John Lackey and lead the Cubs to a 3-1 victory over the Cardinals on Wednesday night. Read more http://scores.espn.go.com/mlb/recap?gameId=340924116&teams=st.-louis-cardinals-vs-chicago-cubs
