He was influential in the club's first win of the season, which came against Preston North End at the weekend, and played a big part as Derby registered their second away victory in four days, away at the in-form Reading on Tuesday night.
The form shown over the past two months has been enough to see him favoured over summer signing Andreas Weimann by Paul Clement as the Austrian has largely featured from the bench and been unable to have an impact on results.
How important is Russell to Derby's promotion push?
Although Russell has always been considered as one of Derby's most talented players, it's fair to say he is currently enjoying one of his finest runs of form since his move from Dundee United in 2013.
The Scottish attacker, although not short on technical ability, is largely revered due to his work-rate and willingness to do the dirty part of the game as well as the attacking side.
Clement does have the options to replace Russell, should he have a dip in form. However, the attacker's presence and direct running style is currently proving too important to the side for the former Real Madrid assistant to consider any other options.