Bayern Munich president Uli Hoeness has announced that an agreement has been reached for the signing of Manuel Neuer from Schalke.
But he says official confirmation will only come when Schalke are ready.
The Germany international will reportedly join the Bavarians for a fee of 15million euros, with more instalments owing depending on success, but the move can only be ratified when the Gelsenkirchen club see fit.
"Our board have reached an agreement with Schalke in negotiations and it is just a psychological question of whether they want to announce it before the cup final or afterwards," Hoeness told Sky television.
Neuer has already announced that he will not be extending his contract with the Royal Blues beyond 2012 and Bayern's offer has been on the table for some time now.
Representatives from both clubs met in Berlin last week and a deal is believed to have been struck, but Schalke appear to want to end the season before speaking out on their keeper's future.
But Hoeness has beaten them to it by announcing the transfer of the Germany number one, who will seemingly now play his last game for Schalke in the DFB-Pokal final against Duisburg next weekend.
Jupp Heynckes, meanwhile, has no doubt Bayern will reach the Champions League group stage next season after his current employers Bayer Leverkusen pipped the Bavarian giants to the runners-up spot in the Bundesliga.
Heynckes, who takes over as Bayern coach this summer, gave himself a greater workload at the start of next season by guiding Leverkusen to a 1-0 win at Freiburg that clinched second place - and direct passage to the Champions League proper.
With Bayern finishing third, a two-legged qualifier will have to be negotiated if Heynckes new charges are to join Leverkusen at European football's top table.
Bayern could face the likes of Napoli or Roma, or even Manchester City, in the qualifying round, but Heynckes is confident they have the pedigree to overcome any opponent.
"Bayern have a very good team now and they will have an even better one next season," he said. "We will get through the qualifiers."
Bayern president Hoeness is more cautious, however, and has warned of the perils of the qualifying round.
"The small problem is that we could be drawn against Manchester City," he said.
Bayern captain Philipp Lahm added: "It could be very tough, but we are FC Bayern and anybody who gets us will think that they have got the toughest draw."