Perch collapsed in a heap clutching his face after minimal contact from Reina during the Magpiesâ€™ 2-0 win.
Reina was shown a straight red card and is now out of the Redsâ€™ Wembley clash against Everton on Saturday, April 14.
Johnson hit out at Perchâ€™s conduct tweeting: â€śWhat have I just seen? Is Perch for real? Joke.â€ť