Jon Lester

Free agent pitcher Jon Lester signed with the Chicago Cubs on a six-year, $155 million deal, reports ESPN.

The report says the contract includes a vesting option for a seventh year that could bring the left-hander’s total take to $170 million.

“It’s not often you get to win the lottery,” Cubs manager Joe Maddon said, according to ESPN. “We won the baseball lottery so far this year, but now it’s up to us to put it into effect. It’s all theory right now. We’ve got to make it real, but you need pieces like this to make it real.”

Lester chose to sign with the Cubs over the Boston Red Sox, the San Francisco Giants and the Los Angeles Dodgers.

In the past season, he was 16-11 with a career-best 2.45 ERA. The Oakland Athletics acquired him in a blockbuster trade-deadline deal with the Boston Red Sox in exchange for outfielder Yoenis Cespedes.