The agent of Sporting Lisbon midfielder Miguel Veloso says Bolton Wanderers face competition for the Portugal international.
"It is important to notice that Bolton are not alone. Manchester City have already shown interest in him," Veloso's agent Paulo Barbosa said.
"Basically, what is happening now is that clubs are expecting to see what other clubs could offer, in order to make their own bid.
"He (Veloso) is not allowed to talk too much now about this subject but he is looking forward to seeing clubs reaching an agreement.
"What may block the negotiations? Well if the bidders do not offer what Sporting Lisbon are looking at, for example.
"Probably, between today and tomorrow, there might be an outcome on this issue."