Urawa Red Diamonds, colloquially Urawa Reds, are a professional association football club playing in Japan's football league, J1 League. The club has been able to boast the highest average gates for fourteen of the J-League's twenty season history. Founded: 1950 Arena/Stadium: Saitama Stadium 2002 Capacity: 63,700 Location: Saitama, Saitama Prefecture, Japan League: J1 League Manager: Takafumi Hori