Left-hander Dallas Keuchel and the Chicago White Sox are in agreement on a three-year, $55.5 million deal, sources told ESPN's Jeff Passan.
The agreement includes a vesting fourth year option worth $18.5 million, sources say.
The White Sox have been one of the most active teams this winter as they continue to make their push toward contention in the American League Central.
They kicked off free agency by signing catcher Yasmani Grandal to a four-year, $73 million deal and resigned All-Star Jose Abreu to a three-year deal soon after.