Carragher was withdrawn, as was fellow defender Sami Hyypia, against Sunderland yesterday after picking up an injury. There are fears the vice-captain may have broken a rib and he will have a X-ray on his chest today.
"Sami lost the vision in his left eye and may well have broken his nose," said Rafael Benitez.
"Jamie is in a lot of pain and I'm not sure if either will be involved against Toulouse. We'll wait and see."