Former Japan coach Takeshi Okada joined China’s Hangzhou Greentown Thursday, further bolstering the Super League’s ranks just days after the landmark signing of French star Nicolas Anelka.Okada, who took Japan to the knock-out stages of last year’s World Cup, was in Hangzhou, an eastern city near Shanghai, for the signing, a spokesman said, adding that further details would be released later.“We are busy now as Takeshi Okada is in Hangzhou now. The contract has been signed this morning. There will be a press conference on Dec. 24,” the official informed.Hangzhou, who finished eighth in the 16-team Super League, also posted pictures on their microblog of Okada smiling and holding a green football shirt with the number 99.