Comment: Sport is huge business and the influence of the underworld is getting greater by the year. The threat is so acute that it needs to be addressed head on, argues David Howman, Director General of WADA, in the fifth contribution to Play the Game’s comment series on corruption in sport.

Comment: It would be disastrous if politicians took over the governing of sport. To avoid such a worst case scenario, it is essential that sport federations at all levels work a lot more with good governance, argues Niels Nygaard, President of the Danish NOC and Sports Confederation in this fourth contribution to Play the Game’s comment series on corruption and good governance in sport.

In the third contribution to Play the Game’s series on corruption and good governance in sport, Swiss journalist Jean François Tanda looks at the recent problems in FIFA and argues that the main problem is the lack of willingness to investigate corruption inside FIFA.

Comment: In this second contribution to Play the Game’s exclusive comment series on corruption in sport leading up to the Play the Game 2011 conference, Thomas Bach, Vice-President of the International Olympic Committee (IOC), highlights the need to protect sport, which integrity, credibility and reputation are threatened by doping, corruption and manipulation of competitions.

Comment: In this first entry in a comment series Sylvia Schenk, Senior Advisor on sport in Transparency International, opens the sport governance debate arguing that corruption, the lack of transparency and other governance problems is an urgent challenge.

Comment: “Will Caribbean football crumble without the man they called ‘Teflon Jack’”, journalist Lasana Liburd asks in this comment piece discussing how football in the Caribbean will go on after Jack Warner resigned as head of CONCACAF and CFU amid corruption allegations.

Comment: While trying to control the riots in London, London Mayor Boris Johnson must also ensure that the riots will not affect the London Olympcs and that they do not happen again in July 2012.

Comment: It is worth considering if the polluter-pays principle could be used in sport as a tool against doping, hooliganism, corruption and other forms of inappropriate behaviour, argues Jean-Loup Chappelet in this comment article.