Vida Blue, Oakland Athletics legend, died at the age of 73.

“There are few players with a more decorated career than Vida Blue. He was a three-time champion, an MVP, a six-time All-Star, a Cy Young Award winner, and an Oakland A’s Hall of Famer. Vida will always be a franchise legend and a friend. We send our deepest condolences to his family and friends during this arduous time. A’s,” the Oakland Athletics tweeted.

His cause of death has not been revealed.

Born on July 28, 1949, in Mansfield, Louisiana, Vida Blue joined the Oakland Athletics at the age of 19. He went on to play in the MLB from 1969 to 1986. He was a prominent member of the A’s teams that won the World Series championships in 1972, 1973, and 1974.

He concluded his career with 209 wins, a 3.27 ERA, and 2,175 strikeouts in 3,343 1/3 innings pitched. Even after his playing career, he continued to promote the sport both in the United States and internationally.

Following his death, several of his fans took to social media to pay tribute to him.

“Vida Blue rest in peace, my mentor, hero, and friend. I remember watching a 19 year old phenom dominate baseball, and at the same time alter my life. There are no words for what you have meant to me and so many others. My heart goes out to the Blue family,” one person wrote.

“Vida Blue pitched for 17 years and AVERAGED 233 innings pitched per season. 1971 he threw 312 innings with a modest ERA of…league-best 1.82 Remarkable career and one of the all time cool baseball names,” wrote another person.

Another person tweeted, “My baseball glove..bought it at a baseball show in 1984..used it my entire softball career Evan used it in high school..the best glove I’ve ever had was a prototype glove created for a left handed major leaguer by Mizuno..that major leaguer was Vida never leaves me.”