The Wales international injured his medial knee ligaments in the closing stages of last weekend's goalless draw with fellow strugglers Portsmouth and will sit out the clash, though under-pressure manager Phil Brown is hopeful he will not prove a long-term absentee.
Despair: Myhill fails to stop Chelsea from scoring
Star midfielder Jimmy Bullard did not train with his team-mates yesterday due to a shin injury and a decision is still to be made on his participation at Turf Moor.
Provisional squad: Warner, Duke, McShane, Kilbane, Sonko, Dawson, Barmby, Marney, Zayatte, Geovanni, Hunt, Vennegoor of Hesselink, Ghilas, Mendy, Altidore, Bullard, Gardner, Mouyokolo, Olofinjana, Cousin, Halmosi, Boateng, Fagan, Garcia, Cooper, Atkinson, Featherstone.
CLICK HERE FOR ALL THE REST OF THIS WEEKEND'S PREMIER LEAGUE TEAM NEWS