Matzek will be a part of the Braves' 60-man roster, Gabe Burns of The Atlanta Journal-Constitution reports.
Matzek hasn't appeared in the majors since 2015 as a result of anxiety issues that forced him out of organized baseball in 2016. However, he spent the 2019 season in the minors and had struck out 10 while tossing 4.2 scoreless innings in spring training this year prior to the suspension of play. The 29-year-old could be a contender to make some appearances out of Atlanta's bullpen this season.