<p>When Tianjin Tianhai surprisingly thrashed Rafael Benitez's Dalian Yifang 5-1 to stay in the Chinese Super League in November, disgruntled fans were quick to allege corruption -- the legacy of a murky past that exploded into scandal 10 years ago.</p>.<p>Benitez, who led Liverpool to the 2005 Champions League title, was perplexed by one of the heaviest defeats of his coaching career, saying: "This is a game that I don't quite understand."</p>.<p>Despite fan complaints to the Chinese Football Association (CFA), no case was brought and there is no evidence of wrongdoing.</p>.<p>But the haste with which some supporters claimed match-fixing was proof that deep scars remain, a decade after a major crackdown on graft that ensnared a string of leading figures in Chinese football.</p>.<p>Allegations of organised gambling, crooked referees and match-fixing had dogged the sport in the world's most populous country for years.</p>.<p>Coupled with the national side's poor performances, fans were disillusioned, attendances suffered and sponsors fled.</p>.<p>It was in this climate in January 2010 that Nan Yong, supremo at the CFA, and two other senior CFA figures were hauled in by police on allegations of bribe-taking and match-fixing.</p>.<p>When police raided a Beijing villa belonging to Nan they discovered gold, diamonds and watches that he confessed he accepted from clubs and referees.</p>.<p>In a widening corruption investigation, scores of CFA officials, club executives, referees, players and agents were questioned in the following months.</p>.<p>According to some, the crackdown was at the behest of Xi Jinping, the then vice-president of the country who has since become China's most powerful leader since Mao Zedong.</p>.<p>Xi has pledged to make China a leading football power.</p>.<p>"It is an open secret that the chaos in Chinese soccer is not a matter of (only) one rotten egg spoiling the whole pudding," the state-run China Daily said in January 2010, urging an overhaul.</p>.<p>CFA officials routinely fixed matches, including national team and league games, by buying off players or referees, state media alleged.</p>.<p>Some CFA officials also reportedly accepted pay-offs from players desperate to be in the national team -- a practice that was also widespread among at club level.</p>.<p>In February 2010, Guangzhou Pharmaceuticals -- who would later be rebranded as Guangzhou Evergrande, winning eight league titles and two Asian crowns -- and Chengdu Blades were relegated for paying bribes.</p>.<p>Referees began disappearing into police custody too, among them Lu Jun, who officiated at the 2002 World Cup and the Olympics, earning the nickname "Golden Whistle".</p>.<p>Wei Di, who replaced the sacked Nan at the top of the CFA, threatened to cancel the 2010 season, saying: "Our goal is to clean up Chinese football, we cannot allow this cancer to remain in the body."</p>.<p>In autumn 2010 the dragnet widened and investigations were launched into Nan's predecessor Xie Yalong.</p>.<p>Xie later told a court that police tortured him with electric shocks, beat him and doused him with water during interrogation. They denied the claims.</p>.<p>Next came the detention of Lou Shifang, the former general manager of Shanghai Shenhua, who won the league title in 2003. They were subsequently stripped of the crown.</p>.<p>The 2010 season did take place but towards the end, to prevent referees and players from fixing the outcomes of matches, half-time was extended from 15 to 30 minutes so that all second halves would kick off at the same time.</p>.<p>FIFA was unimpressed by the arrangement.</p>.<p>"This kind of behaviour amounts to amending football match rules and is obviously a violation of the rules," it said.</p>.<p>In the following years, a string of high-profile Chinese football figures were locked up.</p>.<p>"Golden Whistle" Lu was among the first to be convicted -- along with three other top referees -- in February 2012 for accepting cash to fix seven league matches. He was sentenced to five-and-a-half years in prison.</p>.<p>Former CFA bosses Nan and Xie were each jailed for about 10 years. Nan would go on to remodel himself in prison as an inventor and writer of fiction stories.</p>.<p>By February 2013, 33 people had been banned from Chinese football for life; 25 were handed five-year bans; and at least 12 clubs were punished, of which some were dissolved.</p>.<p>Chinese football has since risen in stature at club level, with large-scale investment by Chinese companies and tycoons attracting a flood of players and coaches from overseas.</p>
<p>When Tianjin Tianhai surprisingly thrashed Rafael Benitez's Dalian Yifang 5-1 to stay in the Chinese Super League in November, disgruntled fans were quick to allege corruption -- the legacy of a murky past that exploded into scandal 10 years ago.</p>.<p>Benitez, who led Liverpool to the 2005 Champions League title, was perplexed by one of the heaviest defeats of his coaching career, saying: "This is a game that I don't quite understand."</p>.<p>Despite fan complaints to the Chinese Football Association (CFA), no case was brought and there is no evidence of wrongdoing.</p>.<p>But the haste with which some supporters claimed match-fixing was proof that deep scars remain, a decade after a major crackdown on graft that ensnared a string of leading figures in Chinese football.</p>.<p>Allegations of organised gambling, crooked referees and match-fixing had dogged the sport in the world's most populous country for years.</p>.<p>Coupled with the national side's poor performances, fans were disillusioned, attendances suffered and sponsors fled.</p>.<p>It was in this climate in January 2010 that Nan Yong, supremo at the CFA, and two other senior CFA figures were hauled in by police on allegations of bribe-taking and match-fixing.</p>.<p>When police raided a Beijing villa belonging to Nan they discovered gold, diamonds and watches that he confessed he accepted from clubs and referees.</p>.<p>In a widening corruption investigation, scores of CFA officials, club executives, referees, players and agents were questioned in the following months.</p>.<p>According to some, the crackdown was at the behest of Xi Jinping, the then vice-president of the country who has since become China's most powerful leader since Mao Zedong.</p>.<p>Xi has pledged to make China a leading football power.</p>.<p>"It is an open secret that the chaos in Chinese soccer is not a matter of (only) one rotten egg spoiling the whole pudding," the state-run China Daily said in January 2010, urging an overhaul.</p>.<p>CFA officials routinely fixed matches, including national team and league games, by buying off players or referees, state media alleged.</p>.<p>Some CFA officials also reportedly accepted pay-offs from players desperate to be in the national team -- a practice that was also widespread among at club level.</p>.<p>In February 2010, Guangzhou Pharmaceuticals -- who would later be rebranded as Guangzhou Evergrande, winning eight league titles and two Asian crowns -- and Chengdu Blades were relegated for paying bribes.</p>.<p>Referees began disappearing into police custody too, among them Lu Jun, who officiated at the 2002 World Cup and the Olympics, earning the nickname "Golden Whistle".</p>.<p>Wei Di, who replaced the sacked Nan at the top of the CFA, threatened to cancel the 2010 season, saying: "Our goal is to clean up Chinese football, we cannot allow this cancer to remain in the body."</p>.<p>In autumn 2010 the dragnet widened and investigations were launched into Nan's predecessor Xie Yalong.</p>.<p>Xie later told a court that police tortured him with electric shocks, beat him and doused him with water during interrogation. They denied the claims.</p>.<p>Next came the detention of Lou Shifang, the former general manager of Shanghai Shenhua, who won the league title in 2003. They were subsequently stripped of the crown.</p>.<p>The 2010 season did take place but towards the end, to prevent referees and players from fixing the outcomes of matches, half-time was extended from 15 to 30 minutes so that all second halves would kick off at the same time.</p>.<p>FIFA was unimpressed by the arrangement.</p>.<p>"This kind of behaviour amounts to amending football match rules and is obviously a violation of the rules," it said.</p>.<p>In the following years, a string of high-profile Chinese football figures were locked up.</p>.<p>"Golden Whistle" Lu was among the first to be convicted -- along with three other top referees -- in February 2012 for accepting cash to fix seven league matches. He was sentenced to five-and-a-half years in prison.</p>.<p>Former CFA bosses Nan and Xie were each jailed for about 10 years. Nan would go on to remodel himself in prison as an inventor and writer of fiction stories.</p>.<p>By February 2013, 33 people had been banned from Chinese football for life; 25 were handed five-year bans; and at least 12 clubs were punished, of which some were dissolved.</p>.<p>Chinese football has since risen in stature at club level, with large-scale investment by Chinese companies and tycoons attracting a flood of players and coaches from overseas.</p>