After a 0-0 draw earlier in the season, the two sides are gearing up for a contest which will earn bragging rights in addition to valuable points.
Derby defender Ryan Shotton decided to ramp up the talk ahead of the lunchtime kick-off this Saturday at the iPro Stadium.
He sent a message out on Twitter designed to rile up opposition fans, before later remarking he had been notified one had made a complaint against him.
It's awfully quiet over in Nottingham!— 'Shots' (@RyanShotton88) January 13, 2015
Someone has actually called the media office at #dcfc to report me for my last tweet!!! Hahaha this just gets better and better!— 'Shots' (@RyanShotton88) January 13, 2015
Shotton only clinched his permanent move to Derby this month from Stoke, but did play in the previous draw at the City Ground as he was on loan at the time.
Going into that game, Nottingham Forest were flying at the top of the table, yet it was marred by captain Chris Cohen suffering a serious knee injury, the third of his career.
Now they head into this weekend's contest looking up at their high-flying rivals. Derby are joint top of 48 points, while 13th placed Forest have only 31 and have not won any of their last six Championship games.