The product is a custom 2004 World Series Jersey autographed by baseball legend Pedro Martinez. The autograph is authenticated by James Spence Authentication (JSA) ensuring its authenticity. This is World Series away jersey with Official 2004 World Series patch on the left sleeve. This is the style Pedro wore when he won Game 3, pitching 7 shut out innings with 6 strikeouts and only allowing 3 hits! This collectible item is a must-have for fans of the Boston Red Sox and collectors of sports memorabilia. It is a rare and valuable piece of history from one of the most iconic players in MLB history.