Yoshiyuki Kobayashi (小林 慶行, Kobayashi Yoshiyuki; born January 27, 1978) is a Japanese football manager and former player who is the manager of J1 League club JEF United Chiba. His brother Ryo Kobayashi is also a former footballer.
Source: “Yoshiyuki Kobayashi”, English Wikipedia (CC BY-SA 4.0), excerpt
