The Derby County winger has been ruled out for up to six weeks with knee damage.
Having watched their side lose 2-0 at home to Derby, Cardiff City fans took to Twitter to voice their dismay.
Derby County won against Cardiff City in the Championship on Tuesday evening.
Derby County's poor start to the season continued with a 1-0 defeat at home to Ipswich Town.
Derby County haven’t been so successful in the transfer market over the past 18 months.
After defeating Carlisle United 14-13 on penalties in the League Cup, Derby County fans took to Twitter to react to Timi Max Elsnik's winning spot-kick.
Derby County are set for an interesting summer under new boss Nigel Pearson.
Nick Blackman has made a poor start to life at Derby County since signing from Reading.
Derby County signed Nick Blackman from Reading earlier in the January transfer window.
Nick Blackman made his Championship debut for Derby County in a 1-1 draw against Reading last night.