Jackson’s short rift with Earnhardt has seemingly earned him some ire in the NASCAR community because he was the target of a social media post from RFK Racing on Saturday showing Brad Keselowski and Chris Buescher’s cars, which are numbered 6 and 17, respectively.

The two-time MVP filed an opposition to the 26-time Cup Series winner this week over a pending trademark. Here's what to know.

The No. 8 has been well known among many athletes in sports that donned the number. Baltimore Ravens star Lamar Jackson has taken his association with that number to another level