Matzek will miss all of the 2023 season while recovering from Tommy John surgery.
Jackson Stephens was designated for assignment to open up a roster spot.
To make room on the active roster, Atlanta designated Guillermo Heredia, William Woods and Silvino Bracho for assignment
Chavez will earn $1.2 million if he makes the big league roster.
2023 Braves Offseason Moves
Every Atlanta Braves transaction from the end of the 2022 World Series to the start of spring training in 2023.