Yankees general manager Brian Cashman has taken exception to an anecdote about him and Jason Giambi in a new book about Roger Clemens. The book, "The Rocket That Fell to Earth," by Jeff Pearlman, will be released later this month. Pearlman claims in the book that when Giambi went through a slump in the 2002 season, his first with the Yankees, Cashman was heard yelling at a television in the clubhouse during a game. Citing "one New York player," the book said that Cashman screamed, "Jason, whatever you were taking in Oakland," get back on it. On Thursday, Cashman vehemently denied the claims. "That is completely false," he said.