Newcastle face a central defensive crisis, with Jonathan Woodgate possibly out for the season after tearing a thigh muscle in Sunday's 2-1 win over Chelsea and Andy O'Brien banned for two Premiership games against Wolves and Southampton.
Robson says he will consider trying to recall Caldwell over the next few days.
"I will be looking at Steve Caldwell's situation at Leeds," he said, "I have to consider my options."
Robson says he will consider trying to recall Caldwell over the next few days.
"I will be looking at Steve Caldwell's situation at Leeds," he said, "I have to consider my options."