Atlanta placed Matzek on the 15-day injured list Tuesday, retroactive to May 5, with left elbow inflammation, Grant McAuley of 929 The Game reports.

Matzek gave up two runs on three hits in the eighth inning of Thursday's loss to the Mets.

Matzek touched 95 mph with his fastball during Sunday's Grapefruit League appearance, David O'Brien of The Athletic reports.

Matzek (side) struck out two over a scoreless inning Thursday in Atlanta's 3-1 loss to the Rays in Grapefruit League play.

Matzek (side) is expected to return to Grapefruit League play in the next few days, Mark Bowman of MLB.com reports.

Matzek wasn't available for Saturday's 10-3 loss to the Orioles in Grapefruit League after experiencing tightness around his left rib cage, Mark Bowman of MLB.com reports.

Matzek (elbow) is scheduled to make his Grapefruit League debut Monday against the Orioles, Roch Kubatko of MASNSports.com reports.

Matzek (elbow) feels healthy to begin the spring and is aiming to be ready for Opening Day, but an IL stint to begin the season hasn't been ruled out, Justin Toscano of The Atlanta Journal-Constitution reports.

Atlanta general manager Alex Anthopoulos said Friday that Matzek (elbow) is expected to be ready for spring training, Justin Toscano of The Atlanta Journal-Constitution reports.

Matzek (elbow) played catch Saturday, David O'Brien of The Athletic reports.