Lamar Jackson and Troy Aikman are set to face off, in the U.S. Patent and Trademark Office.
The Baltimore Ravens quarterback filed a challenge against a trademark filing by the former Dallas Cowboys quarterback to use their shared jersey number of No. 8, according to ESPN and trademark attorney Josh Gerben.
At issue is Aikman owning and applying for several trademarks featuring the word "EIGHT" on apparel and bags, which Jackson's legal team reportedly argues would be "likely to cause confusion, or cause mistake, or to deceive" the public when it comes to figuring out if they're buying, say, a Troy Aikman T-shirt or Lamar Jackson T-shirt.