Norwich will be bidding to bounce straight back against Wigan after losing their 10-game unbeaten record to Aston Villa in midweek.
And Johnson, 25, says the Canaries are still not getting the credit they deserve for their performances this season.
"People are always writing us off and we always seem to prove them wrong. We went 10 games unbeaten and nobody really mentioned it.
"If any other team had done that a lot more people would have been talking about it."