Middlesbrough have won just two of their last nine league matches.
Karanka stated after Boro lost 2-1 to Blackburn Rovers in midweek that the supporters would be happy as he played 4-4-2.
Many of the Teessiders supporters have been calling for the Spaniard to use a system which utilised two strikers up front all season.
However, it didn’t work against Blackburn - as Middlesbrough fell to a 2-1 defeat.
After that match, Karanka was in a defiant mood, but he insists that he does not want to be at war with his own club’s supporters.
"But once again, the only words I have for them (the fans) is thanks,” Karanka said. “Always.
"I have nothing against them. I know how important they are, especially when we play tomorrow at home, so don't try to put me against them.”
Karanka has come under a bit of pressure as Boro boss, as they have struggled to find their best form recently.
The North East side were in a commanding position at the top of the Championship table, but they are now in third place.
Middlesbrough have won just two of their last nine league matches, with their next fixture coming against Wolverhampton Wanderers later this evening.