With three minutes left in the match and the Foxes up 1-0, Ndidi fouled Shane Duffy and he was dismissed by referee Chris Kavanagh.
RED CARD— Premier League (@premierleague) March 31, 2018
Wilfred Ndidi gets his second yellow after catching Shane Duffy late and Leicester are down to 10 men
Brighton 0-1 Leicester (88 mins)
The Nigeria international was first cautioned in the 76th minute after he brought down Jose Izquierdo in the penalty area – but Kasper Schmeichel saved the resulting spot-kick taken by Glenn Murray.
In the closing seconds of the game, Jamie Vardy powered in the second goal of the evening as Claude Puel’s men side secured a vital away win.
Ndidi got his first career red card against Crystal Palace on December 16, 2017 to celebrate his 21st birthday in a wrong way.
Before his expulsion, the 21-year-old made a total of four tackles (75% tackles won) and four clearances.