The Athletics Integrity Unit (AIU) has appealed to the Court of Arbitration for Sport (CAS) against a Disciplinary Tribunal's decision to clear Nigerian 100 metres hurdles world record holder Tobi Amusan of whereabouts failures.

Nigeria’s 100 metres hurdles world record holder Tobi Amusan has been cleared to compete at the World Athletics Championships here, although the Athletics Integrity Unit (AIU) says it is “disappointed” by the decision.

Beijing 2008 gold medallist Andrei Silnov has decided not to appeal the extension of his doping ban as he believes it would be a "waste of time".

The Athletics Integrity Unit (AIU) has banned Botswana's men's 800 metres Olympic silver medallist Nijel Amos for three years after testing positive for a banned metabolite, with Kenya's Esther Macharia handed a four-year ban following a positive testosterone test.

Athletics New Zealand was asked to explain insufficient drug testing on its athletes last year by the Athletics Integrity Unit (AIU), it has been revealed.

The Athletics Integrity Unit (AIU) is to review a decision by India's National Anti-Doping Agency (NADA) to reduce a ban on javelin thrower Shivpal Singh from four years to one after he claimed he had ingested banned drugs in a contaminated supplement.

A third pacemaker who was part of Eliud Kipchoge’s team in running the marathon below two hours has been banned for doping.

Anti-doping bodies from around the world took part in the first in-person meeting of the Sport Human Intelligence Network (SHIN) in Warsaw as covert strategies in the fight against doping were discussed.

Kenyan long-distance runner Lilian Kasait Rengeruk has been sentenced to a 10-month period of ineligibility by the Athletics Integrity Unit (AIU) after testing positive for letrozole.

Russian race walkers Aleksandr Ivanov and Igor Yerokhin have been found guilty of committing further anti-doping rule violations by the Athletics Integrity Unit (AIU).

Two more Kenyan distance runners have been suspended by the Athletics Integrity Unit (AIU) for failing drugs tests, including Hangzhou Marathon winner Michael Kunyuga.

Kenyan runner Tabitha Gichia Wambui has been banned from competition for seven years after testing positive for norandrosterone and tampering with the anti-doping process.

The Athletics Integrity Unit (AIU) has issued three separate charges against Nigerian sprinter Blessing Okagbare - two related to testing positive for banned substances and one for not cooperating with an investigation.

A group of 10 Nigerian athletes have been declared ineligible for the Olympics by the Athletics Integrity Unit (AIU) because they were not tested rigorously enough in the run-up to Tokyo 2020.

Tajikistan’s Rio 2016 hammer throw champion Dilshod Nazarov has received a retrospective two-year doping ban - and World Athletics President Sebastian Coe has called for him to step down from his position as President of his country’s athletics federation.