What Cuban- American that played during the 1985 Oakland Athletics season , admitted to using performance-enchancing drugs during his playing career in his tell-all book in 2005? 
1985 Oakland Athletics season: The Oakland Athletics' 1985 season involved the A's finishing 4th in the American League West with a record of 77 wins and 85 losses. 1985 Oakland Athletics season:  While the Athletics' on-field performance continued to disappoint, the debut of slugger Jose Canseco gave fans a measure of hope. Jose Canseco: José Canseco Capas Jr. (born July 2, 1964), is a Cuban-American former Major League Baseball (MLB) outfielder and designated hitter. Jose Canseco:  Canseco has admitted using performance-enhancing drugs during his playing career, and in 2005 wrote a tell-all book, "", in which he claimed that the vast majority of MLB players use steroids.
Jose Canseco