The San Francisco pitching staff will see yet another new face as Jay Jackson joins the club on a minor league deal. Jackson comes to the club after first being drafted by the Cubs in the 2008 June Amateur Draft. He was taken in the 9th round from Furman University and pitched as high as the AAA level in their organization. Overall the 33-year-old right-hander had his best year in 2010 going 11-8 with 119 strikeouts in 157 1/3 innings of work and had an ERA of 4.63. He never made it to the Majors while in the Chicago organization and was released in 2013 and the Marlins signed him 5 days later. In his lone season while with the Marlins farm system, he was a 4-7 combined in the AA and AAA level over 21 games and made 18 starts. Jackson struck out 93 batters over 104 2/3 innings thrown and compiled a 3.53 ERA and went to the Free-Agent market that Winter.
The right-hander landed a minor league deal with the Pittsburgh Pirates and pitched in 25 games (12 starts) for the Indianapolis Indians in 2014. He had a 4.89 ERA in those games but struck out 87 batters in just 84 2/3 innings. Jackson was traded to the Nashville Sounds later in the season for cash considerations and went 0-3 in 6 starts. The San Diego Padres picked him up a minor league deal of their own in January 2015 and went on to go 3-4 in 54 games over the AA and AAA levels. He boasted a 2.42 ERA over that span with 86 strikeouts in 74 1/3 innings. San Diego brought up Jackson for his Major League debut on September 14, 2015 against the Diamondbacks. He tossed 2/3 of a 10-3 win and allowed 2 runs off 4 hits with 1 strikeout. He went on to finish the season in the Padres bullpen, appearing in 6 games with 4 strikeouts in 4 1/3 innings against 20 batters. The club released Jackson and then spent a couple of seasons overseas before coming back to the USA in 2019 and signing with the Brewers. He was 5-2 in 34 games for the Brewers AAA club San Antonio Missions, who he played for while with the Padres but it was their AA team at the time. Jackson struck out 54 of the 160 batters he faced while with the Missions while tagging on a 2.21 ERA in 40 2/3 innings. Milwaukee brought him up for 28 games in 2019 and was 1-0 with 47 strikeouts and a 4.45 ERA. The Greenville, South Carolina native signed with the Reds close to the end of last season but never appeared in any games.
Jackson has spent time overseas as mentioned above, both for the Hiroshima Carp and the Chiba Lotte Marines. Combined with both teams he was 7-6 in 134 games, striking out 156 batters while walking just 45 batters and had a 2.11 ERA. He has also spent 3 seasons in the Mexican Pacific Winter League, owning a record of 6-2 and 1 season in the Venezuelan Winter League covering a 3-2 record in 7 games.