Chicago Cubs pitcher Yu Darvish's World Series struggles last October may have actually helped his new team in its pursuit of the righty, which ended officially on Tuesday when he signed for six years and $126 million. The Cubs didn't pay much attention to his 3.1 innings and nine runs given up to the Houston Astros over two starts for the Los Angeles Dodgers in the Fall Classic. "I felt bad for him in the World Series, but I also felt it might be an opportunity if other teams overreact to that," Cubs president Theo Epstein said during a Tuesday news conference. "We know there's more to Yu Darvish than what happened in the World Series. "First of all, there were a lot of reasons for what happened ... from the possibility of tipping pitches, the difficulty with the baseballs and then the Astros were red-hot. They won the World Series for a reason, but I don't think we would be doing our job if we evaluated based on a two-game sample. He's been over here for six years. He's proven himself as an elite pitcher." Darvish didn't ignore the criticism from last fall. In fact, he took it a step further.