The strongest signal here is not the rumour itself but the market movement around it.
That leaves Martinez in a position where a new exit route may be needed, and Chelsea are one of the few clubs who can still reshape a big position late in the window. If the door has opened at Villa, it is logical that interest would follow quickly.
Sanchez has had stretches where he looks suited to Chelsea’s build-up game, but mistakes remain the problem. The latest criticism came despite a win at Fulham, which is often when transfer decisions become clearer: results can cover flaws, but high-profile errors keep the conversation alive.
For Chelsea, this would not just be a reaction move. It would be a statement that the club no longer wants uncertainty in the position. Martinez offers a very different profile - experience, presence and a reputation for handling pressure - and that alone explains why his name has surfaced.
Another report says Villa opened the season with a 4-0 defeat to Brighton after a summer in which several key players were sold. In that context, a possible Martinez departure would look less like an isolated transfer and more like part of a broader reset.
The next step is simple: watch whether this remains exploratory or turns into a formal push before the window closes. With Villa facing Arsenal next and Chelsea still searching for certainty in goal, this story looks unlikely to cool down quickly.