Yes. It is expected MLB will eventually put a new team in Nashville. 

Is this an attempt to promote the popularity of the sport in the state of Tennessee?

kurszusz

Yes. Getting ready for expansion to Nashville. 

BlokchainB

MLB is hosting a regular season game between the Braves and Reds at famed Bristol Motor Speedway in Bristol TN on August 2nd.

Construction_and_Engineering

MLB is hosting a regular season game between the Braves and Reds at famed Bristol Motor Speedway in Bristol TN on August 2nd. 

Pretty cool. 

https://speedwaydigest.com/index.php/news/speedway-news/507601-construction-underway-on-field-for-upcoming-mlb-speedway-classic-at-bristol-motor-speedway/