Former New York Mets general manager Frank Cashen died on Monday. He was 91.

Cashen served as the Mets' GM from 1980-91 and put together the team that won the 1986 World Series.

After being a perennial loser, the Mets had the best record in Major League Baseball during Cashen's last eight seasons as GM. They went 743-550 from 1984-91.

"On behalf of all of us at the Mets, we extend our deepest condolences to Jean Cashen and her entire family," Mets principal owner Fred Wilpon said in a statement. "Frank Cashen revitalized our franchise when he took over in 1980 as general manager and helped engineer us to a world championship in 1986.

"I dealt with Frank on a daily basis and he was a man of integrity and great passion. No one had a more diverse career than Frank. He was also a lawyer, sports writer and marketing executive. His accomplishments will always be an integral part of our team history."

Cashen, also known for his bowties, made the 1983 trade that brought first baseman Keith Hernandez to New York from the St. Louis Cardinals. He also guided a minor league system that produced star pitcher Dwight Gooden and outfielder Darryl Strawberry.

Including this year, Cashen regularly attended the team's spring training games in Port St. Lucie, Fla.

Before coming to the Mets, Cashen was an executive with the Baltimore Orioles when they won World Series titles in 1966 and 1970.