Lefty pitcher, Jason Christiansen, may be best known for an argument with Giants teammate, Barry Bonds that ended with Bonds in a headlock! Here is a game used #40 Giants jersey, circa 2000, signed by Christiansen in mint black Sharpie above the back numbers. A Russell Authentic Collection tag is sewn to the front left tail with "50" and "+2 extra length" flag tags sewn just below. Giants patch on the sleeve. The MLB logo patch is sewn to the back collar. Light use.