The 32-year-old was omitted from Villa’s squad for Sunday’s 3-0 home defeat to Crystal Palace.
After the match, manager Unai Emery told Sky Sports that the club ‘have to fix’ the situation.”
"One of the situations we are speaking about is Emi Martinez, but we will see tomorrow. We have to fix it with him," Martinez said.
Aston Villa are still searching for their first Premier League win this season, having lost two and drawn one of their opening three games.
When asked whether the club plans to make any further moves before Monday’s transfer deadline, the manager said: "We need others, of course.
"I am happy with the players we have, but we have to get something more in the squad.
"We have some circumstances that are not helping us. Tomorrow the transfer window is finishing. Hopefully, we can keep balance with the squad after it."