Atlanta declined Jackson's $7 million club option for 2025 on Monday, Mark Feinsand of MLB.com reports.

Jackson (4-2) allowed two runs (one earned) on one hit, taking the extra-inning loss Thursday versus the Cubs.

Jackson (4-1) walked one over 1.1 scoreless and hitless innings to earn the win over the Cubs on Thursday. He did not record a strikeout.

Jackson (3-1) earned the extra-inning win Saturday over the Mets, allowing one walk over a scoreless and hitless inning.

The Giants reinstated Jackson (back) from the 15-day IL list Monday.

Jackson (back) is currently throwing from 90 feet, Maria I. Guardado of MLB.com reports.

The Giants placed Jackson on the 15-day injured list Friday with a lower-back strain, Maria I. Guardado of MLB.com reports.

Jackson suffered tightness in his lower back Thursday against San Diego and is being sent for an MRI, Shayna Rubin of the San Francisco Chronicle reports.

Jackson left in the seventh inning of Thursday's game against the Padres, Andrew Baggarly of The Athletic reports.

Jackson has allowed one run on one hit and one walk while striking out four over two Cactus League innings.