Friday, May 29, 2026

Legal Dispute Brewing Between UFC And Anti-Doping Agency

  • MMA property threatens action against USADA, creates new drug-testing program
  • Public disclosure of McGregor re-entering testing pool sparks rebuke
Gary A. Vasquez-USA TODAY Sports

UFC’s next big fight may be outside the Octagon as it escalates a bitter rift with a leading anti-doping agency.

The MMA property is creating its own drug-testing program and threatening legal action against the U.S. Anti-Doping Agency after the latter claimed UFC did “an about-face” on the status of Conor McGregor, as well as on their future relationship.

USADA has said that McGregor, like any other fighter, must spend six months in a drug-testing pool and pass two tests before competing. Having been out of the pool since 2021, he made his reentry on Sunday. McGregor was previously expected to fight in December, but his status has been in question because of the testing rules.

“We do not currently know whether UFC will ultimately honor the six-month-or-longer requirement,” the agency said. “The UFC’s move imperils the immense progress made within the sport under USADA’s leadership.”

That prompted an angry reply from UFC, which objected to both the public announcement of McGregor’s entering the testing pool — something not normally done in order to protect athletes’ privacy — and the attacks on its organizational credibility. UFC also insisted that McGregor won’t be fighting until next year.

“It was a dirty move by them,” UFC president Dana White said of USADA on “The Pat McAfee Show.” “That was straight scumbag-ism what happened. … The you-know-what is about to hit the fan on that one.”

The property will begin working with Drug Free Sport International in January, when its current USADA deal ends.

Defying a UFC request for a public retraction and apology, USADA responded that it “stands by our statement and our credibility.”

This field is for validation purposes and should be left unchanged.

Sign up for
The Memo Newsletter

Get the biggest stories and best analysis on the business of sports delivered to your inbox twice every weekday and twice on weekends.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Linkedin
Whatsapp
Copy Link
Link Copied
Link Copied

What to Read

May 16, 2026; Los Angeles, California, USA; Ronda Rousey (blue gloves) celebrates defeating Gina Carano (red gloves) after a women's featherweight bout at Intuit Dome. Mandatory Credit: Jayne Kamin-Oncea-Imagn Images

How Jake Paul’s MVP Plans to Build on Netflix MMA Debut

Saturday’s debut averaged 12.4 million viewers on Netflix.
Jul 10, 2021; Las Vegas, Nevada, USA; Conor McGregor fights Dustin Poirier during UFC 264 at T-Mobile Arena. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

Conor McGregor Set for First UFC Fight in 5 Years

McGregor lost his last two fights, which each occurred in 2021.
WWE NXT
exclusive

WWE Moving 20 NXT Premium Live Events to The CW

The deal includes 20 events over the next several years.
exclusive

Caleb Williams Didn’t Mean to Start an ‘Iceman’ Fight

“It’s all respect” to NBA legend George “Iceman” Gervin, Williams told FOS.

Featured Today

Frances Cabral-Delaney

How Arsenal Fandom Went ‘Manic’

“People do not become Arsenal fans because it’s easy,” says Zohran Mamdani.
May 23, 2026; Anaheim, California, USA; Fans participate in a tarp off during a MLB game between the Los Angeles Angels and the Texas Rangers at Angel Stadium
May 28, 2026

‘Tarps Off’: How Shirtless Fans Took Over MLB

The viral movement began with the SFA club baseball team.
Apr 6, 2026; Arlington, Texas, USA; Seattle Mariners catcher Cal Raleigh (29) walks to the on deck circle during the game against the Texas Rangers at Globe Life Field
May 28, 2026

Why Ballparks Are Louder Than Ever

Some stadiums sound like veritable nightclubs. How did we get here?
May 24, 2026; Evanston, IL, USA; Northwestern Wildcats attack Kathryn Ratanaproeksa (13) shoots against the North Carolina Tar Heels during the first half at Martin Stadium
May 26, 2026

Can Women’s Lacrosse Buck the Trend in College Sports?

The sport is fighting to prove its worth in the revenue-sharing era.
May 27, 2026; Kansas City, Missouri, USA; New York Yankees right fielder Aaron Judge (99) celebrates with first baseman Paul Goldschmidt (48) after the win over the Kansas City Royals at Kauffman Stadium.

MLB Labor Talks Face Long Road and Certain Change

The initial salvos reinforced how differently owners and players view the sport.
Apr 30, 2025; Los Angeles, California, USA; General view of the field during the game between the Los Angeles Dodgers and the Miami Marlins at Dodger Stadium.
May 28, 2026

MLB Labor Talks Escalate With Owners’ Salary Cap Pitch to Union

Eight teams would need to shed payroll under the proposed structure.
May 19, 2023; Washington, District of Columbia, USA; Washington Mystics forward Elena Delle Donne (11) talks with New York Liberty forward Breanna Stewart (30) prior to the opening tip-off at Entertainment & Sports Arena.
exclusive
May 29, 2026

New WNBA CBA Will Pay $14M to Retired Players

The WNBA and WNBPA announced the full CBA was finalized Friday.
Sponsored

The Hidden Economy of Race Weekend

Learn more about the Vintage Flying Museum and how Spectrum Business is helping them achieve their business goals while fueling their dreams.
May 10, 2026; Chicago, IL, USA; Rehearsal before the 2026 NBA Draft Lottery at Navy Pier. Mandatory Credit: David Banks-Imagn Images
May 28, 2026

NBA Approves New ‘3-2-1’ Draft Lottery System

The new system will go into effect for the 2027 draft.
May 28, 2026

Sacramento’s Bid Intensifies MLB’s Complex Expansion Derby

The California capital city formally unveils its bid to land a club.
December 30, 2024; Santa Clara, California, USA; San Francisco 49ers tight end George Kittle (85) celebrates a first down against the Detroit Lions during the fourth quarter at Levi's Stadium. Mandatory Credit: Kyle Terada-Imagn Images
May 28, 2026

George Kittle Shares 2 Changes NFL Should Make for 18th Game

Kittle believes an 18th game should come with new benefits for players.
May 27, 2026

NBA, NHL, WNBA Leaders: AI Will Change Officiating, Impact Games

Several sports commissioners spoke on “The Pat McAfee Show” on Wednesday.