The Chicago White Sox and left-hander Dallas Keuchel have agreed to a $55.5 million, three-year deal, a person familiar with the negotiations told The Associated Press.

The person spoke on condition of anonymity Saturday night because the agreement had not been announced. Keuchel’s deal includes a vesting option for 2023 that would bring the total value to $74 million.

The 31-year-old Keuchel signed a roughly $13 million, one-year deal with the Atlanta Braves in June and went 8-8 with a 3.75 ERA for the NL East champions.