​Spanish legend ​Iker Casillas has revealed that it was a proud moment in his career that could keep a clean sheet at Anfield against Liverpool as it could be the last time he plays in the Champions League.





The Portuguese side held Jurgen Klopp's Reds to a 0-0 draw at Anfield on Tuesday after losing 5-0 in the first leg in Portugal. 36-year-old Casillas will most probably be a free-agent in the summer which means he might not get another chance to play or win the Champions League for the fourth time in his career.





However, the Spaniard is taking pride that his 'potential' last Champions League game ended in a clean sheet for him against Liverpool at the iconic Anfield stadium.





"There is no better venue in European football than Anfield for appreciating excellence in visitors."



On what might be his last ever Champions League appearance, The Kop showed their respect for Iker Casillas 👏 pic.twitter.com/DTn8xnFelc — Football on BT Sport (@btsportfootball) March 6, 2018





Speaking after the match, Casillas told ​Goal, "If this was my Champions League farewell, it hasn't been a bad night at all - at this fantastic stadium, keeping a clean sheet... but no one knows what the future holds."





Highlighting at his achievements, the World Cup winner said, "If I look back, I can feel proud of the things I've won in the game, of everything I have achieved. I would like to thank the fans. It's been many years in the Champions League and it's great to come to a stadium like this and be given such a warm reception."





Revealing ​his love for Real Madrid again, he praised the Los Blancos for their win against PSG as he said, "Congratulations to Real Madrid [for beating Paris Saint-Germain], let's hope they go as far as possible, and get to the final in Kiev."





The Kop showed a brilliant appreciation for Iker Casillas last night. pic.twitter.com/xICVxImNpF — Mootaz Chehade (@MHChehade) March 7, 2018





Concluding his interview, ​Casillas revealed that the only objective left in his career at the moment is winning the Portuguese league with Porto. He said, "My objective is to win the league with Porto because this group of players deserves to lift the trophy. We'll see what happens at the end of the season."