The midfielder has struggled for consistency this season and has made only 18 Premier League starts.
Aston Villa provisional squad: Martinez, Heaton, Steer, Taylor, Engels, Elmohamady, Hause, Mings, Konsa, Targett, Philogene-Bidace, Chukwuemeka, Grealish, El Ghazi, Luiz, McGinn, Nakamba, Ramsey, Traore, Watkins, Davis, Wesley.
Chelsea will hand late fitness tests to Kai Havertz and N'Golo Kante.
Havertz has battled a muscle issue, with Kante dealing with a hamstring concern.
Andreas Christensen will return after a leg tendon complaint.
Chelsea provisional squad: Arrizabalaga, Rudiger, Alonso, Christensen, Jorginho, Silva, Kante, Abraham, Pulisic, Werner, Caballero, Zouma, Mendy, Kovacic, Giroud, Mount, Hudson-Odoi, Chilwell, Ziyech, James, Azpilicueta, Havertz, Palmieri, Gilmour, Anjorin.