Wrexham manager Denis Smith praised centre-backs Steve Evans and Shaun Pejic after Saturday's 2-0 FA Cup second round win over Scunthorpe.
"Scunthorpe have got two of the best strikers outside the Championship and my two centre-backs kept them quiet," Smith told BBC Wales Sport.
"They are starting to perform consistently as a pair, so that's good.
"And generally from one to 11 it was a good performance. We beat a very good side but I know there is more to come."