The 23-year-old is among the top pitching prospects. He missed last season after he had Tommy John surgery in September 2018, but he hit triple-digits on the radar gun during his first spring training appearance on March 10.
His salary in the minors is $277,500, down from the minimum $563,500 in the majors.
Chicago was scheduled to host the Kansas City Royals on Thursday on opening day, but the start of the season has been pushed back until mid-May at the earliest because of the new coronavirus pandemic.
More AP MLB: https://apnews.com/MLB and https://twitter.com/AP-Sports