Now Ericsson himself has signalled his interest in driving for the team that currently sits fourth in the constructors' standings.
"It does open up another possibility with Force India. It's a good seat," Ericsson told Autosport. "I still think it's most likely I'll stay with Sauber, but like I've said, I want to be in the best team possible, and Force India seem to be really strong at the moment.
"It's a great midfield car, and that's what I need for next year," he added. "We are looking at it. It would be stupid not to because we haven't signed a contract for next year, and now with the Force India seat opened up, we need to see what possibilities are there."
Bahrain International Circuit - Winter testing