Birmingham City boss Steve Bruce is hopeful of having a fully-fit squad available for the next league clash with Bolton at St Andrews on September 15.
Bruce said: "Damien Johnson, Franck Queudrue, Rafael Schmitz and Daniel de Ridder are all back in training to some degree.
"We expect that maybe for the Bolton game - or maybe the Liverpool game after that - everyone will be available - unless anything happens with any of our international players while they are away."