Feb 1 (Reuters) - Chronology of match-fixing cases and related incidents since the launch of China’s first professional soccer league in 1994:
December - Shenyang won a match in Chongqing to avoid relegation from the top flight (Jia A) but the match was later discovered to have been rigged. Both clubs were fined 400,000 yuan ($58,590) but the result stood because there was no evidence of bribery.
October - “Five Rats” - Jiangsu, Changchun, Chengdu, Zhejiang, and Mianyang - were found to be involved in a series of fixed matches in the last three rounds of Jia B (second division). All the players and coaches involved in the matches were banned for one year.
December - Zhejiang boss Song Weiping, unhappy at the punishment, reported several previous match-fixing cases to the Chinese Football Association (CFA) in what became known as the “Black Whistles” scandal.
When referees were offered an amnesty if they came clean, just one, FIFA-listed Gong Jianping, confessed to taking a 40,000 yuan bribe to fix a match.
March - Thousands of fans of Shaanxi Guoli attacked the referee over a last-minute penalty decision, the worst riot in Chinese football history.
January - Gong Jianping, the only referee punished in the first official investigation into match-fixing, received a 10-year sentence. He died 18 months later in prison.
May - China’s top flight league “Jia A” was renamed the “Chinese Super League” (CSL) and the second division “Jia B” renamed the “Jia” league.
October - Beijing Guoan players walked off during a match in protest against a refereeing decision. Beijing forfeited the match, were docked three points and fined 300,000 yuan. The referee was also banned for the rest of the season.
September - The Anti-Football Gambling Leadership Group headed by a senior police officer and Nan Yong, a vice president of the CFA, was launched.
January - Nan Yong took over from Xie Yalong as head of the CFA. April - A Public Security Ministry task force began investigating the Wang Xin case. Wang, former manager of second flight club Shanxi, was wanted by Interpol following match-fixing allegations in Singapore’s S.League when he was managing the Liaoning Guangyuan club.
October - Top Chinese government officials, including President Hu Jintao, voiced concerns about the state of football.
November - The police task force announced the arrest of Wang Xin, former Shanxi boss Wang Po, and Guangzhou manager Yang Xu for alleged match-fixing in 2006.
December - Police arrested Xu Hongtao, president of English-owned CSL club Chengdu Blades, for allegedly bribing a Qingdao official to fix a Jia league match in 2007.
January - Nan Yong, his deputy Yang Yimin and former referee department head Zhang Jianqiang were arrested in the probe and sacked from their posts.
Police released details of a match-fixing case allegedly involving Chinese Super League (CSL) club Guangzhou Pharmaceutical, a CFA official and Zhejiang Greentown players in the second flight Jia League in 2006.
Compiled by Liu Zhen and Nick Mulvenney; Editing by Patrick Johnston and Alastair Himmer; To query or comment on this story email email@example.com