Denver Broncos linebacker Alex Singleton, a co-captain on the team, pulled off a significant feat. He tallied nine tackles during a win over the Las Vegas Raiders, four days after learning he had testicular cancer.
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Singleton revealed this diagnosis on Monday with a post on X, the platform formerly known as Twitter. He also announced that he had underwent successful surgery. Singleton will miss this week's game, but he expects to be back in action very soon.
"This morning, I stood before our team as a lucky man," Singleton posted. "I shared with my teammates and coaches that I underwent successful surgery on Friday for testicular cancer after being diagnosed last week.
"Thankfully, we believe the cancer was caught early with a great prognosis for me and my family. While we are still awaiting some additional test results, I fully expect to return to the field in the coming weeks."
I shared this news with our team this morning.
I’m grateful for everyone’s support and can’t wait to get back on the field soon!
Go Broncos! pic.twitter.com/6qge5tPirn
— Alex Singleton (@alexsingleton49) November 10, 2025
Singleton continued and wrote that a random test as part of the NFL's Drug Testing Program revealed that he had elevated levels of the hormone hcG. He said that these levels did not come from something external that he had put in his body, so he booked an appointment with a urologist.
"On Monday, I visited Dr. Andrew Zilavy who determined that, in fact, I had signs of a testicular tumor. I immediately contacted the Broncos, and they put me in contact with Dr. Geoff Ledgerwood, who was able to conduct an ultrasound immediately to confirm the diagnosis.
"And then Friday, after playing in the Raiders game the previous night, I underwent surgery to remove the cancerous tumor and begin the road to a full recovery."
Singleton, a former Montana State player, got his first real NFL action with the Philadelphia Eagles in 2019. He spent three seasons with the NFC East team before heading to the Denver Broncos in 2022.
Since donning the blue and orange, Singleton has appeared in 47 games while starting 41. He has tallied 460 combined tackles, one interception, three sacks, and two forced fumbles. He has added 12 quarterback hits. This season, Singleton is the team's leading tackler with 89 stops and one sack.
"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 a statement.
"Our No. 1 priority is Alex's health and well-being, and we are grateful it appears the cancer was caught early."
