Fulham boss Roy Hodgson says Brede Hangeland's new contract was key to him also agreeing on new terms.
Hangeland has previously been linked with a move away from Fulham but the centre-back is also close to signing a new deal.
Hodgson said: "It's been sorted out and my information is that we will both sign very, very shortly.
"I'm delighted. It's been one of the factors for me as well, we have spent two years working very hard putting a team together here and working with the group of players. If I'm going to stay I'm hoping some of these players stay as well and give us success."