Giambi, 47, was found dead Wednesday morning at his Claremont home, east of Los Angeles. His agent and police confirmed this.

Giambi was an outfielder and firstbaseman in six major league seasons with Kansas City (1998-1999), Oakland (2000–02), Philadelphia (2002–03) and Boston (2002–03).
Giambi was in the postseason twice for the Athletics. In 2001, Giambi was tag out at home by Derek Jeter’s “flip” throw in the American League Division Series against New York Yankees.

He was born in San Jose. After graduating from South Hills High School in West Covina, he played for the California State University Fullerton team that won 1995 College World Series.

After being selected in the sixth round, 1996 amateur draft, he signed for the Royals.

Giambi testified in front of a federal grand jury in San Francisco about the Bay Area Laboratory Co-operative (or BALCO), the company that was at the heart of the scandal with sports steroids. The Kansas City Star reported that Giambi admitted to using steroids in 2005.

Giambi said that he did it. “I apologize. I made a mistake. I learned from my mistake and moved on.”