Walmart customers and employees can now play pickleball for free at dozens of courts across the US. Here's how to sign up.

• Walmart is partnering with a racket-sports booking platform to create access to pickleball courts.
• Company employees and customers can choose from 125,000 comped reservations to courts.
• The retail giant said the partnership is meant to "break down existing barriers with the sport."

Walmart is getting in on one of the most red-hot sports in the United States: pickleball.

And the Bentonville, Arkansas,-based company is seeking to erase barriers to entry for the sport that is popular at country clubs and recreation centers.