BOSTON (AP) – Red Sox vice president of baseball operations Mike Port was in serious condition Monday after having a heart attack during the weekend.

Port, 58, was out shopping on Saturday when he felt ill, the team said. The longtime baseball executive was being treated at Beth Israel Deaconess Medical Center, hospital spokesman Martin Querzoli said. Port served as Boston’s interim general manager during the 2002 season after the team’s new owners fired Dan Duquette. Port assumed his current position after Theo Epstein became GM before the 2003 season.

A former general manager of the California Angels, Port has spent more than 30 years in baseball.

“Everywhere we go, people ask about him,” Boston manager Terry Francona said before Monday night’s game in Cleveland. “He’s one of the gentlemen in the game who has done so much. All our thoughts are with him.”

After a short stint as a second baseman in the San Diego system, he went on to work in the Padres’ front office.

Along with working for the Angels and Red Sox, he was president of the Arizona Fall League before joining Boston in 1993 as assistant GM.

AP-ES-05-03-04 1928EDT