John Terry said he deserved his red card in Tuesday's 2-2 draw at Barcelona which eliminated the holders and booked the Premier League side's place in next month's Champions League final.
Defender Terry was shown a straight red card by Turkish referee Cuneyt Cakir in the 37th minute for kneeing Alexis Sanchez in the back.
He will miss the final against either Real Madrid or Bayern Munich on 19 May.
"It does look bad on the replay. I raised my knee which in hindsight I shouldn't have done. No complaints from the replay," the Chelsea captain told Sky Sports after his team went through 3-2 on aggregate.
"Sanchez darted in behind me. At the time I was bewildered. I feel like I've let the lads down," added Terry, whose missed penalty cost Chelsea the 2008 title against Manchester United in Moscow.
UEFA's control and disciplinary body will decide the length of John Terry's suspension on 31 May.
Chelsea will also be without the suspended Branislav Ivanovic in the Munich final while fellow defender Gary Cahill was injured during Tuesday's match and David Luiz missed the game.
Terry said he was not surprised at Chelsea's stunning upset.
"This is what this football club deserves. It's massive."