The 1999 Fleer Brilliants Mark McGwire #1 trading card is a highly sought-after collectible for baseball fans and card collectors alike. This card, featuring the St. Louis Cardinals player during the 1999 MLB season, is a part of the base set manufactured by Fleer. With a near mint or better condition, this sports trading card is a valuable piece of memorabilia for fans of Mark McGwire and Major League Baseball.