Joe Castiglione, the Boston Red Sox Hall of Fame radio broadcaster, is retiring after 42 seasons, he announced Sunday.

Castiglione, who will retire at the conclusion of the 2024 MLB season, shared the news on the WEEI broadcast during the fourth inning of Boston’s game against the New York Yankees on Sunday.

Castiglione, 77, is the longest tenured play-by-play announcer in Red Sox franchise history. The team will honor him prior to its final regular season game on Sept. 29 at Fenway Park.

“After 42 seasons with the Red Sox and more than 6,500 games, I have decided it’s time to retire from a regular broadcast schedule,” Castiglione said in a news release from MLB. “While I feel I am at the pinnacle of my career, have been blessed to call four World Championships, and received the Ford C. Frick Award from the Hall of Fame in July while working for the greatest franchise in sports, it’s time to spend more time with Jan, my bride of almost 53 years, my kids, and grandkids.

“While I will miss the daily interactions with baseball people and talking to the fans of Red Sox Nation, I think this is the right decision for my family and myself,” he added.

Following his retirement from broadcasting, Castiglione will remain with the Red Sox in an honorary ambassador role, and may fill in on game broadcasts “when the need arises,” according to the release.

Castiglione, a native of Hamden, Connecticut, graduated from Colgate University and earned his master’s degree from Syracuse University’s S.U. Newhouse School of Public Communication. He began his broadcasting career at WFMJ-TV in Youngstown, Ohio, and got his start calling MLB games with the then-Cleveland Indians in 1979. He worked as a broadcaster for the Milwaukee Brewers in 1981, but returned to Cleveland for the 1982 season. He also broadcast games for the NBA’s Cleveland Cavaliers and college basketball on NESN, according to the release.

In 1983, Castiglione joined Boston’s broadcast booth, where he spent the next 42 seasons calling four World Series championships for the Red Sox in 2004, 2007, 2013 and 2018.

Castiglione was inducted into the Red Sox Hall of Fame in 2014, alongside Pedro Martinez, Nomar Garciaparra and Roger Clemens. In 2022, the Red Sox renamed Fenway Park’s home radio booth the “Joe Castiglione Booth” in honor of the longtime broadcaster. Most recently this past July, Castiglione received the Baseball Hall of Fame’s Ford C. Frick Award, which is awarded annually to a broadcaster for “major contributions to baseball,” according to the HOF.