Tottenham chairman Daniel Levy is threatening to cancel the £94m Gareth Bale to Real Madrid transfer following Chelsea's late intervention to sign Willian, according to the Daily Mail.
The Spurs chief is furious with Chelsea after Roman Abramovich sanctioned a £32m bid for the 25-year-old Brazilian Tottenham target.
The Anzhi star is available, and reportedly had a medical at White Hart Lane earlier this week ahead of a proposed move to Spurs.
He's been lined up by Andre Villas-Boas to replace Bale, who's set to complete his world record move to Spanish giants Real Madrid.
But that transfer is now in jeopardy as Levy considers his next move. The report claims Tottenham officials will plan their next move carefully, with the Bale agreement contingent on lining up a replacement to announce at the same time.
The Bale to Real Madrid deal is still likely to go through by the end of the transfer window though, but Mourinho's last-ditch effort to hijack the Willian deal has temporarily thrown it in doubt.
Spurs continued without Bale last night, beating Dinamo Tbilisi 5-0 in the Europa League, while Chelsea made it two wins out of two in the Premier League with a 2-1 victory over Hull City on Wednesday evening.