Remy, 56, had surgery for lung cancer late last year, according to NESN. He developed an infection and pneumonia in February, but returned for the start of the season.

On April 30, Remy returned home from a trip when he had a setback. Remy was a longtime smoker who quit at the end of last year.

"I want to focus on completing my recovery so that I can return to work without distractions or interruptions," Remy said in a statement from NESN. "I hope that disclosing my bout with cancer will reinforce the dangers of smoking to every member of Red Sox Nation, especially children."

Remy had a 10-year major career that included seven seasons with the Red Sox. He became a broadcaster in 1988 and has become a popular figure.

"Jerry is beloved, and on behalf of everyone in Red Sox Nation, I want him to know that he is in our thoughts," Red Sox chairman Tom Werner said in a statement. "We will sorely miss him in the broadcast, but the most important thing is that he takes all the time he needs to recover."

Dennis Eckersley, a NESN studio analyst, will work with play-by-play announcer Don Orsillo in the booth for the next four games at Fenway Park. Dave Roberts, who joined NESN last week, will be the color commentator during the upcoming West Coast trip.

While Remy's condition had not been made public, it was known among members of the organization

"RemDawg's awesome," Dustin Pedroia said. "Hope he gets well. We're going to miss him. Our prayers are with him. ... He has that personality. It's a little bit different [on the air]. I mean, Eck does a good job, but he's not the RemDawg."