Madrigal, 24, was the 4th overall pick of the 2018 Draft by the White Sox. He has a .317/.358/.406 slash line and terrific bat-to-ball skills, but his defensive limitations — he’s a second baseman who doesn’t really profile defensively anything else — and his lack of power he’s seen as a high floor, low ceiling guy who profiles as an average second baseman in the major leagues.
Madrigal has, per B-R, 164 days of service time — short of a year, but with the potential changes in the CBA, he could end up getting credit for a full year of service in 2020. That, along with 2021, would make him eligible for free agency after 2025; otherwise he has five years of team control after this season.
Madrigal is on the 60 day injured list currently.
Heuer, 25, is a righthanded reliever with a career 3.75 ERA and a 3.33 FIP over the past two seasons.
Kimbrel, 33, was once the best relief pitcher in baseball, and he is pitching like it again currently. Kimbrel has a 0.49 ERA and 1.08 FIP in 39 games, and has struck out 64 of 137 batters faced this year. He is under contract for $16 million this year, and has a $16 million option for 2022.