Chelsea are the only Premier League club to start the 2025-26 season without a matchday shirt sponsor after Nottingham Forest agreed a partnership with American gambling firm Bally's.
There is an ongoing competitive process for the front-of-shirt sponsor with Chelsea believed to have had offers, but focused on aligning with the right long-term partner.
The club is aiming to strike a deal worth £60m-£65m per season following qualification for the Champions League and winning the revamped Fifa Club World Cup.
New Saudi Arabia airline Riyadh Air have been strongly linked to a potential sponsorship.