DoorDash has inked a deal with Walmart to provide grocery delivery services for the retailer’s stores in the Atlanta area, the companies said on Tuesday.

Why it matters: This is part of DoorDash’s recent foray beyond restaurant deliveries so it can compete with diversified rivals like Postmates and UberEats. For Walmart, it’s undeniably about continuing its war with Amazon after the tech giant's acquisition of Whole Foods, which it’s using to bolster its grocery business. Walmart has been testing grocery delivery with other partners for a while now, including Uber, Lyft, and Deliv.