Fulham will again be without first-choice goalkeeper Antti Niemi at Bolton in the Premiership on Sunday, because of a niggling back problem.
Czech stopper Jan Lastuvka will again stand in, while Tony Warner has returned from his loan spell at Leeds to give Fulham cover.
Coleman said: “This is Antti’s third injury, and I will not hide from the fact it is something we have to address.
“We may have to look for a number two goalkeeper – but if he continues to have problems we may have to look for a new number one.
“But to get a goalkeeper who is better than him is going to cost a lot of money.”