Interesting article on the introduction of sabermetrics to Japanese baseball and Yosuke Okada, the man who almost single-handedly brought it in.
https://theringer.com/yusuke-okada-japanese-bill-james-sabermetrics-nippon-professional-baseball-e8e42fe874d9
https://theringer.com/yusuke-okada-japanese-bill-james-sabermetrics-nippon-professional-baseball-e8e42fe874d9