Elliot Daly has joined England team-mate Jamie George in publicly committing his future to Saracens in the wake of the salary cap scandal that has engulfed Allianz Park.
The double winners will be relegated from the Gallagher Premiership in June as punishment for repeatedly breaching the £7million ceiling for player wages, placing the futures of their influential England contingent in doubt.
George has revealed he is set to stay and now Daly has pledged his loyalty despite a turbulent first season in north London having joined from Wasps last summer.
"It's a bit surreal. I've still only played 30 games for Saints, so even though things had been going reasonably well in the Premiership, I wasn't really expecting a call-up," Furbank said.
"To get it was slightly surreal in itself. I wasn't really expecting to be involved in the first game against France at all. It was an amazing feeling.
"The nerves were well and truly going on Sunday morning. It was different to anything I'd played in front of before.
"That was all a bit crazy and potentially I let that get to me a little bit during the game, but for the Scotland week I felt more myself, more settled."