Manchester City boss Sven Goran Eriksson admits they could make a big-name signing this month.
However, while conceding he would open the City doors to any of the aforementioned, the Swede accepts the trio are unlikely to be lured.
"You named three names; I would open the door for all three of them, or two of them, or one of them," he told Sky Sports News.
"They are very good names but I think they are extremely difficult to reach."
While loath to disclose too many details with regards possible signings, Eriksson was willing to concede he was hopeful of luring another top name to the club.
"Yes, I expect something more will happen. One or two more (signings).
"I hope so, we're working on that. Sometimes we think we are close but the day after we are less close. It's not easy to get players in January, it's understandable.
"All clubs have their objectives - to get in Europe, to stay in the division.
"It's difficult but we are trying."