The Giants announced on Friday that Travis Ishikawa will become the new hitting coach for one of the franchise’s two Arizona League rookie ball affiliates. The hiring seemingly brings an official end to Ishikawa’s 15-year playing career — he didn’t play last season after being granted free agency following the 2016 campaign. Ishikawa was originally a 21st-round pick for the Giants in the 2002 draft, and though he suited up for five other teams over the course of his career, only two of his 15 seasons were spent entirely outside of the Giants organization. That long tenure in San Francisco earned him World Series rings in 2010 and 2014, with Ishikawa playing a particularly notable role in the latter championship year.