Bayern Munich ruled out rushing through a deal for a new goalkeeper as Yann Sommer emerged as a prime target to replace the injured Manuel Neuer.
The 34-year-old Sommer has a contract with Borussia Monchengladbach that runs to the end of this season.
Bayern are weighing up a bid before the January transfer window closes, but they are away in Doha at a training camp for now, so nothing appears imminent.
Sporting director Hasan Salihamidzic spoke at a press conference in the Qatari city on Saturday, where he said efforts were under way to resolve the problem that arose when Neuer suffered a broken leg on a post-World Cup skiing holiday.
Having confirmed Bayern's interest in Switzerland international Sommer on Friday, Salihamidzic has now stressed a deal is not yet in place.
"As I said yesterday, I don't like to talk about other clubs' players," said the former Bayern defender. "The topic of the goalkeeper is of course one where we're thinking about it, but we're working on everything.
"Of course, Manuel's injury is a big blow for us. We're going to continue our work, check options, and then make a decision.
"We have until January 31 and until then we'll either do something or not."
The prospect of the goalkeeper issue going to the wire still appears unlikely, given Bayern resume their Bundesliga campaign on January 20 after the extended winter break.
Coach Julian Nagelsmann would ideally want the situation resolved by then, with there being seemingly little prospect of Alexander Nubel returning from his loan at Monaco.
Nubel has indicated a reluctance to come back, having become a regular in the Monaco team, and Salihamidzic says Bayern are aware of his stance.
"We have had very good communication between us, him and his management. We know exactly what the situation is," said the sporting director.
Bayern will be without defender Noussair Mazraoui for several weeks after announcing on Friday that medical tests had showed up an inflammation issue relating to his heart.
The Morocco international tested positive for COVID-19 at the World Cup, before recovering in time to face France in the semi-finals.
Subsequent tests have shown Mazraoui has a mild inflammation of the pericardium, which is the fluid-filled fibrous sac surrounding the heart.
Salihamidzic said it was unclear whether Mazraoui had been brought back too soon by Morocco.
"It's hard to tell if it was too early or not. He talked to [Morocco] medical staff, he talked to our medical staff, and he had tests. The tests were okay," Salihamidzic said.
"We don't know how it is with post-COVID. It's quite a blow for us that we have to be without him now.
"We'll talk about why this has happened to us. He's an important player for us, so we'll have to try to replace him.
"Of course he will be able to take all the time that he needs to recover. We'll have a test every week and see how he feels from week to week, but for now we're without him."