Mariano Rivera

Mariano Rivera underwent surgery Friday morning to remove polyps from his vocal cords.

Rivera’s agent, Fern Cuza, said the surgery “went well, as planned.” While Rivera was told by a doctor that the polyps didn’t “look like anything serious,” he is currently awaiting biopsy results. The 42-year-old will be unable to speak for the next week as he rehabs from the surgery, but he is expected to be ready in time for spring training.

Mariano Rivera will undergo surgery Friday to remove polyps from his vocal cords.

He is expected to need a couple of weeks of recovery time, including one without speaking, but it shouldn’t have any impact on his availability for spring training. The 42-year-old posted a 1.91 ERA, 44 saves and a 60/9 K/BB ratio over 61 1/3 innings this season and should be one of the top closers off the board again in 2012.

Mariano Rivera acknowledged Tuesday that next season might be his last.

“I have one year left [on a two-year contract],” Rivera said. “I might call it over. I will know more in spring training.” Rivera remains at the top of his game, but also is turning 42 next Tuesday while dealing with the prospect of vocal cord surgery.

Mariano Rivera told Anthony McCarron of the New York Daily News that he probably needs surgery on his vocal cords.

Rivera has dealt with discomfort for about a month. It’s not yet known if he’ll have the surgery, but it seems unlikely it would have an impact on his availability for spring training. Rivera, who turns 42 later this month, posted a 1.91 ERA, 44 saves and a 60/9 K/BB ratio over 61 1/3 innings this season and should be one of the top closers off the board again in 2012.