Add to your MLB collection with this Carl Yastrzemski Boston Red Sox Autographed 2007 Upper Deck SP Legendary Cuts When It Was A Game Jersey Relic #WG-CY Beckett Fanatics Witnessed Authenticated Card. Graded and authenticated, this card is the perfect way to celebrate the career and accomplishments of the Boston Red Sox star. Along with an eye-catching design and his unmistakable signature, it's encapsulated in a tamper-evident case for a lasting display of your Carl Yastrzemski fandom.