The 2000 SPx (produced by Upper Deck) set was initially released in May, 2000 as a 120-card set. Each pack contained four cards and carried a suggested retail price of $5.99. The set featured 90-player cards, and a 30-card "Young Stars" subset. There are three tiers within the Young Stars subset. Tier one cards are serial numbered to 1000, Tier two cards are serial numbered to 1500 and autographed by the player and Tier three cards are serial numbered to 500 and autographed by the player. Redemption cards were issued for several of the autograph cards and they were to be postmarked by 1/24/01 and received by 2/3/01 to be valid for exchange. In late December, 2000, Upper Deck issued a new product called Rookie Update which contained a selection of new cards for SP Authentic, SPx and UD Pros and Prospects. Rookie Update packs contained four cards and the collector was guaranteed one card from each featured brand, plus a fourth card. For SPx, these "high series" cards were numbered 121-196. The Young Stars subset was extended with cards 121-151 and cards 182-196. Cards 121-135 and 182-196 featured a selection of prospects each serial numbered to 1600. Cards 136-151 featured a selection of prospect cards signed by the player and each serial numbered to 1500. Cards 152-181 contained a selection of veteran players that were either initially not included in the basic 120-card "first series" set or traded to new teams. Notable Rookie Cards include Xavier Nady, Kazuhiro Sasaki, Ben Sheets and Barry Zito. Also, a selection of A Piece of History 3000 Club Ty Cobb memorabilia cards were randomly seeded into packs. 350 bat cards, three hand-numbered autograph cut cards and one hand-numbered, combination bat chip and autograph cut card were produced. Pricing for these memorabilia cards can be referenced under 2000 Upper Deck A Piece of History 3000 Club.