2001 Upper Deck Rookie Update Baseball Forum

Why are these cards listed as Upper Deck Rookie Update / SPx Rookie Update instead of just SPx Rookie Update?

This set looked to have been released as a standalone product used to update other sets. As such it received its own entry in here. This set looks to be consistent with how other sets like this are handled in here.

"The product included updated and rookie cards from three previously released 2001 Upper Deck baseball brands: 2001 SP Authentic, 2001 SPx, and 2001 Sweet Spot. Each four-card pack will yield at least one base card from each of the three aforementioned sets."

Thanks for the reply 

Sets formatted as "inserts only" will simply display a list of inserts on its home page with the format "Set Name - Insert Name". The set itself is called "Upper Deck Rookie Update" as seen on the Packaging.