Sunderland are still hoping to reach an agreement which will allow John Mensah to remain in England.
Discussions were due to be held this week, but the travel disruption caused by the volcanic ash cloud forced a proposed meeting to be delayed.
The Black Cats remain keen to talk terms, though, and plan to meet up with the 27-year-old Ghana international's agent in the near future.
Manager Steve Bruce said: "It was supposed to be this week but, with the volcano, it's been put back a week."
Mensah has spent the 2009/10 campaign on loan at the Stadium of Light from Lyon, but has seen his season disrupted by niggling injuries.
That is likely to have dissuaded Sunderland from making a permanent move for his services, but an extension to his loan deal may be possible.
Meanwhile, Bruce is still waiting on an answer from Bolo Zenden regarding his future, with the experienced Dutchman recently offered a new one-year deal.
He said: "I think the situation will be up to Bolo. He knows I want to keep him, I will be respectful to him and see what he wants to do."
Bruce is also tracking Belgium U21 goalkeeper Simon Mignolet, but admits an agreement is far from guaranteed.
"We are aware of the young goalkeeper, but that's as far as it has gone at the moment," he said.