Artboard 2 About the TIU

About the TIU

The Tennis Integrity Unit (TIU) is the anti-corruption body covering all professional tennis around the world. It is responsible for enforcing the sport’s zero-tolerance policy on betting-related corruption. In doing so it has three main strategic priorities – preventing corruption from taking place; investigation and prosecution of offenders; delivering anti-corruption education for players and stakeholders to recognise and report corrupt activity. The TIU is an operationally independent organisation based in London. It is funded by the sport's seven major stakeholders – International Tennis Federation, ATP, WTA, Australian Open, French Open, Wimbledon and the US Open.


In 2008, tennis was among the first sports to establish its own anti-corruption body. All 'Covered Persons' are bound by the Tennis Anti-Corruption Program, which gives TIU the right to interview and obtain, with consent, suspects' phones, tablets, lap tops and financial records. Investigations are opened at any time, into any covered person. Offenders are subject to lifetime bans and fines up to US$250,000. In helping to prevent corruption, TIU works with the sport to make it as difficult as possible for would-be corruptors to access players and tournaments. Player education is critical. All players complete an online Tennis Integrity Protection Program which explains grooming techniques and the process of reporting corrupt approaches.

Nigel Willerton


Nigel Willerton, a former senior officer with the Metropolitan Police in London, is the TIU's Director of Integrity. The Unit currently has a team of 17 full time staff.

The Team

TIU staffing is reviewed on an ongoing basis to ensure resource is appropriate and adequate. With over 200 years of collective law enforcement service and experience, tennis has access to expertise covering all areas of criminality including anti-corruption, money laundering and drugs. Operationally, TIU has the ability to follow up intelligence anywhere in the world. Investigators regularly travel to tournaments and events to interview persons of interest.


The TIU works closely with the sport to prevent would-be corruptors gaining access to player-only areas of tournaments. Standard protocols include the global sharing of a TIU-maintained list of individuals regarded as unsuitable to receive credentials. Rules also prevent unauthorised transmission of scoring data from tournaments.


TIU does not have law-enforcement powers, but can interview any person and obtain, with consent, phones, tablets, laptops and financial records. Investigations can be opened at any time, in any part of the world, into any any covered person.

Since 2010, nine players and six officials have been banned for life as a result of TIU investigations. Visit the Investigations and Sanctions page for details of all TIU cases.


Player education is critical. All players complete a compulsory Tennis Integrity Protection Programme (TIPP). This covers grooming techniques and correct reporting of approaches. A confidential 24-7 email reporting line is a successful channel of communicating with players. TIPP is supplemented by other educational materials and presentations to players and officials. In 2017 a dedicated three-person TIU Education and Training division was established to expand the reach and scope of the program.

TIU History


TIU established under the leadership of Jeff Rees, following acceptance of recommendations in the Environmental Review of Tennis.


Uniform Tennis Anti-Corruption Program adopted as universal anti-corruption code for all professional tennis.


The first player is sanctioned under the code, for failing to report a corrupt approach.


Daniel Koellerer is the first player banned for life, for match fixing offenses.


Nigel Willerton replaces Jeff Rees as Director of Integrity.


Independent Review Panel established to report on the effectiveness of the TACP and make recommendations for change. TIU staffing doubled from five to 10 full time employees.


A dedicated three-person TIU Education and Training division was established to extend the range and scope of education for players and officials 


TIU headcount is increased to 17 full time members of staff. The unit's annual budget is set at US$3.71 million, up from US$3.23 million in 2016  


Contact the TIU