In a statement, Nike said it did not comment on ongoing litigation.
Britain's double Olympic champion Mo Farah has said he will continue to work with coach Alberto Salazar who is being investigated by the U.S. Anti-Doping Agency (USADA).
Top athletics coach Alberto Salazar and US Olympic silver medallist Galen Rupp have denied any wrongdoing after a BBC documentary accused them of violating anti-doping rules.
Jessica Ennis-Hill's top Olympic coach Toni Minichiello has blasted Mo Farah for missing drugs tests prior to the 2012 London Olympics.
Nike Inc shut down its Nike Oregon Project training group on Thursday, following the recent four-year ban of founder and coach Alberto Salazar by the US Anti-Doping Agency.
Britain's double Olympic champion Mo Farah denied ever taking performance-enhancing drugs and said rumours and speculation over his career after the revelation that he missed two drugs tests "are completely false".
Alberto Salazar, the coach of Britain's Olympic champion Mo Farah, has been accused of using prohibited infusions of supplements to improve the performance of his runners, the Sunday Times reported citing a leaked United States Anti-Doping Agency (USADA) report.
Britain's double Olympic champion Mo Farah said on Tuesday he was '100 per cent clean.'
Dr Robin Chakraverty, former chief medical officer at UK Athletics, told British legislators he injected Farah with 13.5 millilitres (ml) of L-carnitine prior to his London Marathon debut but had "forgotten" to record it in the necessary forms.
Kenyan Brigid Kosgei broke Paula Radcliffe's 16-year-old women's marathon world record but former Alberto Salazar coached athletes, including Mo Farah, were never a factor in the Chicago Marathon.
None of the athletes Salazar has worked with were mentioned in Monday's report.
A summary of sports events and sports persons, who made news on Tuesday
Double Olympic champion Mo Farah won the 5,000 metres at the Diamond League meeting in Lausanne.
Summary of sports persons and events in the news on Friday.
Usain Bolt answered questions over his fitness ahead of the world championships with a season's best of 9.87 seconds in the 100 metres with a workmanlike performance at the London Anniversary Games on Friday.
Botswana's Nijel Amos laid down a marker ahead of next month's world championships by winning a highly-anticipated 800 metres showdown with Kenyan Olympic champion David Rudisha at the Anniversary Games on Saturday.
American Noah Lyles shot to 200 meters world championships gold on Tuesday, providing a bright finish to a day darkened by yet another doping scandal.
Whether or not he triumphs at the world championships in London, Mo Farah will depart as undoubtedly Britain's greatest track and field athlete and right in the mix for the title of the country's greatest performer in any sport.
Summary of sports events and persons who made news on Friday
Summary of sports events and persons who made news on Monday
Justin Gatlin, the year's fastest at 100 and 200, had a bye in the 100 at the trials, but plans to challenge Usain Bolt at both distances in the August World Championships in Beijing.
Images from Saturday's proceedings at the World Athletics Championships in Doha.
Usain Bolt returns to the site of his first global triumph this week for a world championships showdown with a convicted dope cheat that has ramifications for athletics beyond just establishing who is the fastest man in the world.