Bent (hamstring), fellow striker Gabriel Agbonlahor (thigh) and winger Charles N'Zogbia (knee) are all poised to return to training on Friday and will then be assessed by Lambert.
Midfielder Ashley Westwood has been ruled out after suffering an ankle injury during the 2-2 draw at Swansea.
Defenders Ron Vlaar (calf), Nathan Baker (hamstring) and Richard Dunne (knee) remain sidelined.
- Sports & Recreation
- Gabriel Agbonlahor