10:18 AM - Isaac Mattson (Pit) (3-1) allowed two hits and struck out three across two scoreless innings to earn the win Wednesday against the Giants.

10:28 AM - Isaac Mattson (Pit) allowed one hit and struck out three across 1.2 scoreless innings to earn a hold Monday against the Brewers.

3:35 PM - Isaac Mattson (Pit) Pirates recalled Mattson from Triple-A Indianapolis on Saturday.

6:15 PM - Isaac Mattson (Pit) Pirates optioned Mattson to Triple-A Indianapolis on Monday, Noah Hiles of the Pittsburgh Post-Gazette reports.

4:46 PM - Isaac Mattson (Pit) Pirates selected Mattson from Triple-A Indianapolis on Tuesday.

3:57 PM - Isaac Mattson (Pit) signed a minor-league contract with the Pirates on Thursday, Noah Hiles of the Pittsburgh Post-Gazette reports.

5:33 PM - Isaac Mattson (Pit) Pirates outrighted Mattson to Triple-A Indianapolis on Monday, Andrew Destin of the Pittsburgh Post-Gazette reports.

5:13 PM - Isaac Mattson (Pit) Pirates selected Mattson was selected from Triple-A Indianapolis on Thursday, Noah Hiles of the Pittsburgh Post-Gazette reports.

5:47 PM - Isaac Mattson (Pit) signed a minor-league contract with the Pirates on Dec. 11.

3:50 PM - Isaac Mattson (Bal) (shoulder) has made three relief appearances for Triple-A Norfolk this season, covering three no-hit scoreless innings while striking out three and issuing one walk.

3:09 PM - Isaac Mattson (Bal) (shoulder) cleared waivers and was outrighted to Triple-A Norfolk on Friday, Roch Kubatko of MASNSports.com reports.

6:31 PM - Isaac Mattson (Bal) (shoulder) was optioned to Triple-A Norfolk on Wednesday, Zachary Silver of MLB.com reports.

10:58 AM - Isaac Mattson (Bal) is a month behind schedule due to shoulder soreness, Roch Kubatko of MASNSports.com reports.

6:13 PM - Isaac Mattson (Bal) was recalled from Triple-A Norfolk on Friday.

7:19 PM - Isaac Mattson (Bal) was placed on the 7-day minor-league injured list due to right shoulder soreness Friday, Roch Kubatko of MASNSports.com reports.

3:24 PM - Isaac Mattson (Bal) was recalled from Triple-A Norfolk on Saturday.

2:41 PM - Isaac Mattson (Bal) was optioned to Triple-A Norfolk on Sunday.

5:15 PM - Isaac Mattson (Bal) was recalled from Triple-A Norfolk on Wednesday.

9:14 PM - Isaac Mattson (Bal) was recalled Monday, Roch Kubatko of MASNSports.com reports.