Minnesota Twins Assistant Pitching Coordinator J.P. Martinez will replace Ethan Katz as the SF Giants assistant pitching coach. (Rick Osentoski-USA TODAY Sports)
According to a tweet by Kerry Crowley of the Bay Area News Group, the SF Giants have hired J.P. Martinez as the team’s assistant pitching coach. Martinez will replace Ethan Katz, who left the Giants to become the Chicago White Sox pitching coach. Jon Morosi of MLB Network first reported the Giants were eyeing Martinez for the position last Wednesday.