David Luiz's move to Chelsea hit a serious hitch last night over the schedule of payments for the deal, writes Jason Burt.
Benfica want €25m (£21m) to be paid up front -- with Chelsea insisting they will pay no more than €20m now, with the rest later.
It is understood that a final decision will be made today, but Benfica have responded by asking for further add-ons.
In addition, Benfica were still trying to persuade Chelsea to allow them to take Jeffrey Bruma as part of the deal, with the Blues insisting the defender is not for sale.
Bruma will go out on loan, probably to West Brom, for the rest of the season if Luiz is signed.
Benfica have been offered the midfielder Nemanja Matic as the €5m makeweight, and it remains likely that they will accept him rather than his Serb compatriot Slobodan Rajkovic, who has also been offered.
Tempers were so frayed that Benfica threatened to call the deal off and included Luiz in their squad for a cup game at Rio Ave.
Chelsea remain hopeful that the negotiations will be concluded today, and still hope to be able to include the Brazilian in their squad for Saturday's FA Cup tie at Everton. (© Daily Telegraph, London)