The Senegal goalkeeper has overcome a costly error against the Netherlands to help his country reach the knockout stage with good displays against Qatar and Ecuador.
The 30-year-old first sat down for contract talks with the new Chelsea owners over the summer. Then still first-choice at Stamford Bridge and having been named the best goalkeeper of 2021 by FIFA, he asked for a salary that reflected his status.
But Mendy was offered significantly less than the huge £190,000-a-week deal that Kepa is on and then walked away from negotiations.
Chelsea have not improved their offer, and several high-profile errors made by Mendy at the beginning of the season have discouraged them from renegotiating. There is little sign of contract talks restarting and Chelsea are looking for alternatives.
Mendy would happily stay at Stamford Bridge, but wants to feel important.