The former Blackburn forward has made two substitute appearances for the Championship's top side.
The £9m signing (via Gazette Live) has so far made two substitute appearances for the Championship leaders, but certainly staked his claim to be handed a starting spot at Elland Road as he bagged the stoppage-time equaliser in the draw with MK Dons on Tuesday.
Nevertheless, Karanka suggested that he is not planning on rushing into a decision regarding whether to start the 26-year-old or not.
"I have six days to think, I don't know now because I have to analyse the game and analyse the opponent and it's too early to say if he is going to play or not," he said, as reported by the Gazette Live.
While the draw against the Dons sent Boro back to the top of the table, the club's recent form may do enough to tempt Karanka into selecting the former Blackburn forward for the clash against the Whites.
The side have won just one of their last six games in all competitions, and are without a win in their last four, and with the two teams directly below them in the table sitting within two points of them, the manager may decide that it is time to see what Rhodes can do in 90 minutes.
If he does select the Scotland international, he will be hoping that he has a similar impact to when Rhodes' former side visited Elland Road back in October, as the striker's sixth minute strike doubled Blackburn's lead and essentially killed the game off.