Kei Yamaguchi (山口 慶, Yamaguchi Kei, born June 11, 1983) is a Japanese professional football player who is registered with JEF United Ichihara Chiba. Basic public records identify him by name and club affiliation. This article summarizes available, broadly known information and places his career in the context of Japanese club football.

Overview

Yamaguchi is identified in team rosters as a professional member of JEF United Ichihara Chiba. Players in this setting are employed as part of the club’s squad for national league competition, cup tournaments and related activities. For an official player profile, see the club or league sources such as the player profile.

Career context and development

Japanese professional players typically progress from youth academies or university teams into the J.League system. Clubs like JEF United provide full-time training environments, coaching and competition at national levels. While individual career details vary, being registered with JEF United places a player within one of Japan’s established professional organizations; general information about the club can be found on the team page: JEF United Ichihara Chiba.

Role and contributions

Members of a professional squad may serve as starters, rotational players, or squad depth, depending on selection, tactical fit and fitness. Contributions can include participation in league matches, domestic cup fixtures and community or promotional activities run by the club. The precise position, statistics and match appearances for Yamaguchi are documented in match reports and official records maintained by clubs and competitions.

Significance and distinctions

  • Represents the professional tier of Japanese football through J.League-affiliated competition.
  • Listed under his Japanese name (山口 慶), which appears in domestic team materials and media.
  • Career details such as playing position, seasons and match statistics are typically tracked by club and league archives.

This article gives a concise, neutral overview. For up-to-date match appearances, position details and season statistics, consult official club releases, matchday programs and league databases via the links above or the club’s communications channels.