Sadzeck, who signed a minor-league contract with the Brewers on Dec. 1, has received an invitation to MLB spring training.
The 30-year-old right-hander last appeared in the majors in 2019 with the Mariners, making 20 relief appearances while posting a 2.66 ERA and 27:15 K:BB across 23.2 innings. He's struggled to bounce back from a serious elbow injury suffered that same season, however, as he missed the entire 2020 campaign and turned in middling numbers (4.84 ERA, 1.50 WHIP in 44.2 innings) at the Triple-A level in 2021.