Froch is now asking for a million quid extra to go to Berlin but according to boxing scene the contract he signed rules out any extra payment.

Also.

Froch can't withdraw from the SS or he'll face legal action/financial penalties.

And neither fighter can be forced to fight in each other's home country so Sauerland are currently talking about a neutral country. However they'd be throwing away over a million quid by doing so. There's also the possibility that the German TV company that have a deal with Sauerland will "demand" the fight is held in Germany. If Froch wants to make the most money he can from the fight he's going to have to go to Berlin.