The Denver Broncos announced on Monday that linebacker Alex Singleton underwent successful surgery to treat testicular cancer on Friday.

The 31-year-old was diagnosed earlier last week after the results of a random drug test flagged health officials of various indicators of cancer.

"A little over two weeks ago, following a random test as part of the NFL's Drug Testing Program, I received a notice that I had elevated levels of the hormone hCG in my system," Singleton said in a statement. "Without a doubt, 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 and wife, we decided to book an appointment with a urologist."

The team said Singleton is recovering and team doctors are confident he'll be

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