Unbeaten UFC featherweight Tommy McMillen given Narcan after being found unresponsive

Unbeaten UFC featherweight Tommy McMillen was found unresponsive in a Scottsdale, Arizona, nightclub bathroom on Sunday and given Narcan by police. A Scottsdale Police spokesperson gave those details to TMZ, which broke the story on Thursday. The 28-year-old was taken to a hospital in stable condition.

According to the police account relayed by TMZ, McMillen was found at Cake, a club in Scottsdale's Old Town. Officers took him out of the bathroom and gave him Narcan after seeing "a white, powdery substance on the ground near him." Narcan is a drug that quickly reverses opioid overdoses. TMZ added that there didn't appear to be any life-threatening complications when he was admitted.

The substance has not been publicly identified. TMZ's headline calls it a suspected overdose, but Sherdog points out that the cause has not been established. None of the reports we read mention an arrest or a charge.

His coach, Tim Welch, posted a photo of McMillen once the report began to spread. According to ESPN, Welch wrote:

Tommy is completely OK and training yesterday.

McMillen himself has not spoken publicly. TMZ said it asked the UFC for comment and got no reply, and we found no statement from the promotion as of Thursday. We also couldn't find a published Scottsdale police report.

He trains alongside his friend Sean O'Malley, the former bantamweight champion. He is 12-0 as a pro and 3-0 in the UFC, with a bonus in every UFC fight. He won his contract on Dana White's Contender Series in September 2025, beating David Mgoyan by majority decision, per UFC.com.

His UFC debut came on April 4, when he stopped Manolo Zecchini at 3:57 of the first round. On July 18 in Oklahoma City he stopped Alberto Montes at 3:29 of the third. Most recently, at Noche UFC in Glendale on Sept. 12, he beat Marwan Rahiki by unanimous decision. It was Rahiki's first pro loss and won Fight of the Night. Heavy puts his three bonuses at $300,000 combined.

He closed as the favourite in all three UFC fights, at −909, −217 and −185, according to our fighter page. The market made him less of a favourite each time, and he kept winning. A one-unit bet at the closing price each time would have returned 1.11 units of profit. Three fights is far too few to read much into.

McMillen had no fight booked, so no bout has been called off. Heavy mentions unsourced rumours of a return before the end of the year and now calls that unlikely. We'd treat any return date as guesswork for now. Two key facts are still missing: what the substance was, and whether the UFC plans to act.