The 2003 NetPro Tennis Complete Base Set features 90 original trading cards showcasing top athletes like Roger Federer, Rafael Nadal, and Serena Williams. This vintage sports trading card set captures the excitement of the ATP Tour and brings back memories of iconic players like Pete Sampras and Andre Agassi. Each card is part of the base set and represents the 2003 season, making it a valuable addition to any tennis card collection.