Subway Restaurants is hoping convenience-obsessed Americans will eat more subs if they’re delivered.

The chain is partnering with UberEats, GrubHub Inc., DoorDash Inc. and Postmates Inc. to start delivery from almost 9,000 of its about 26,000 U.S. restaurants. More stores will offer the service in “coming months,” the company said in a statement Friday.

Subway is fighting to reverse a slump amid deepening restaurant competition and discounts. The Milford, Connecticut-based company has been trying to energize sales with better technology such as self-order kiosks. It still lacks a leader, however, after Suzanne Greco stepped down as chief executive officer in June. Trevor Haynes has been leading the company on an interim basis.

Restaurants are increasingly turning to third-party delivery companies to bring food to customers. McDonald’s Corp. is working with UberEats, while Taco Bell-owner Yum! Brands Inc. earlier this year agreed to buy a $200 million stake in Grubhub. Denny’s Corp. recently turned to Inc.’s restaurant delivery service.