Kennedy was a free agent after ending the season with Toronto

He was in Tampa to attend a wedding when he collapsed, according to local news reports.

Kennedy played for the Tampa Bay Devil Rays from 2001-2003 before being traded to the Colorado Rockies and then the Oakland A's in 2005.

He pitched briefly for the Arizona Diamondbacks in 2007 and ended the season with the Toronto Blue Jays.

"We are shocked and terribly saddened by the passing of Joe Kennedy," said Paul Godfrey, president and chief executive of the Blue Jays.

"I offer my deepest condolences and prayers to his wife, Jami, and son, Steffen."

Kennedy's major league career record was 43-61.