The Giants on Tuesday announced they have hired J.P. Martinez, a onetime Minnesota Twins farmhand, as their new assistant pitching coach. He replaces Ethan Katz, who was hired as pitching coach for the Chicago White Sox under new manager Tony La Russa.
Martinez, 38, had worked for the Twins since 2015 after being a high school coach in his native Louisiana. Most recently he was the Twins’ assistant minor-league pitching coordinator. He also ran their alternate training camp this summer.
Martinez attended LSU and the University of New Orleans before the Twins took him with their ninth pick in the 2004 draft. He pitched in the Twins’ system for four years, reaching high Class A.
Martinez will work alongside Giants pitching director Brian Bannister, pitching coach Andrew Bailey and bullpen/catching coach Craig Albernaz.
The Giants have not formally announced their staff for 2021 but have said they expect the 12 remaining coaches who were part of Gabe Kapler’s staff in 2020 to return, with the opportunity to interview elsewhere for a potential promotion.
On Wednesday, the Giants’ news will turn toward the players on an important date on the offseason calendar.
Teams have until 5 p.m. PDT on Wednesday to tender contracts to all of their unsigned players. The Giants have an unusually large number of players who are eligible for salary arbitration. The 10 players include outfielders Alex Dickerson, Darin Ruf and Austin Slater, infielder Donovan Solano and pitchers…