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Broncos LB Alex Singleton undergoes surgery for testicular cancer, could return ‘in the coming weeks’

By November 10, 2025 | updated 3 hours ago

Denver Broncos inside linebacker Alex Singleton watches from the sidelines during the second half of an NFL football game against the Las Vegas Raiders Thursday, Nov. 6, 2025, in Denver. (AP Photo/Jack Dempsey)

Broncos linebacker and team captain Alex Singleton underwent surgery for testicular cancer last Friday but could return to play “in the coming weeks,’’ the team said Monday.

Singleton wrote on social media that he informed the team of the situation Monday. The cancer was diagnosed after a random NFL drug test had flagged indicators that prompted further evaluation.

“Alex is recovering well from the procedure with doctors optimistic he could return to play in the coming weeks pending additional test results,’’ the Broncos said in their statement.

Singleton was lost for the remainder of the season after suffering a torn ACL in Week 3 in 2024 at Tampa Bay. However, he has returned this season to start every game at inside linebacker and played 99.4% of the snaps in Denver’s first 10 games.

“Thankfully, we believe the cancer was caught early with a great prognoses for me and my family,” Singleton wrote in his statement. “While we are still awaiting some additional test results, I fully expect to return to the field in the coming weeks. … There are so many people I’d like to thank for their support and immediate action to help over these few weeks.”

Denver Broncos linebacker Alex Singleton is shown during warm ups before the start of an NFL football game against the Miami Dolphins, Sunday, Sept. 24, 2023, in Miami Gardens, Fla. (AP Photo/Wilfredo Lee)

Singleton went into detail about how he learned about the cancer.

“A little over two weeks ago, following a random test as part of the NFL’s Drug Testing Program, I received a note that I had elevated levels of the hormone hcG in my system,” he wrote. “I knew with how diligent I am with what goes into my body that this was not from anything external I may have taken. After speaking with my agent (Paul Sheehy) and my wife (Sam), we decided to book an appointment with a urologist.”

Singleton wrote that Dr. Andrew Zilavy determined he had “signs of a testicular tumor.” He wrote that following an ultrasound Dr. Geoff Ledgerwood cofrmed the diagnosis.

“I wrestled with sharing such personal information publicly,” Singleton wrote. “But the fact is, if it helps one person decide to pay closer attention to their body, then it is well worth it.”

Singleton emphasized that “early detection and regular screenings save lives.”

With the Broncos next playing Sunday against Kansas City at Empower Field at Mile High, Singleton is expected to be replaced in the lineup by Justin Strnad, who has played well this season. Strnad filled in for Dre Greenlaw when Greenlaw missed the first six games of the season due to a quad injury and also the Oct. 26 game against Dallas due to a one-game NFL suspension for unsportsmanlike conduct.

Singleton wore the green dot for the Broncos, meaning he called defensive plays. It remains to be seen who takes over that role.

Chris Tomasson

Reporter

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