Canadian football star will undergo thyroid surgery

This week, Anthony Calvillo - a Canadian Football League quarterback who is currently playing for the Montreal Alouettes - announced that he will undergo an operation to remove half of his thyroid, CBC Sports reports.

The athlete was injured on August 19 in Montreal after falling on the ball while playing against the Winnipeg Blue Bombers. While conducting tests on his bruised sternum, doctors found a lesion on his thyroid. During a news conference, Calvillo said that he was willing to have it taken out at the time it was found, but doctors said it could wait until the end of the season, though no longer than that.

He also revealed that doctors were not sure if the problem was cancer, and half the thyroid will be removed so they can check, as biopsies had been inconclusive. He added that in no way had the doctors put football before his health when making the decision not to act immediately.

About 12 to 15 percent of nodules found on thyroids are cancerous, according to the U.S. National Cancer Institute - though the number is slightly higher for those under 40.