Petr Cech has admitted Chelsea were lucky to be awarded their second goal during their 5-1 FA Cup semi-final victory over Tottenham at Wembley on Sunday.
Juan Mata was credited with the goal which put the West London side 2-0 up, but replays showed that a mixture of John Terry and Benoit Assou-Ekotto had prevented the ball from crossing the line.
And the Blues goalkeeper says having seen the incident again they know they were lucky to double their advantage.
"The situation inside the Tottenham goal area resulted in the second goal. After seeing the replays we all know that it was not a goal but at that moment none of us could notice it," Cech said on his official website.
"There were a lot of players there, the ball was in the air and it looked as if it had crossed the line. And the officials gave it."
The 29-year-old also admitted he was fortunate to stay on the pitch after bringing down Emmanuel Adebayor in the build-up to the Tottenham goal.
The goalkeeper clashed with the Spurs forward as he broke towards the Chelsea goal.
But fortunately for Cech the referee played an advantage and after Gareth Bale slotted into the empty net he opted not to send the Czech international off as he had not denied a clear goal-scoring opportunity.
"Adebayor went round me but he hit the ball badly and Bale scored into an empty net," Cech added.
"I was fortunate because I hit Adebayor in the sliding tackle but the referee gave them an advantage and the question is if I should have been shown a yellow card or a red one.
"Because of the advantage and the goal, the situation did not bring any consequences to me."
Despite their luck, the goalkeeper was full of praise for Chelsea's second half display during which they scored four goals.
"When Rami (Ramires) scored the third goal it was decided. Tottenham had no chance. We did superbly in the second half. To score five goals against Tottenham in a semi-final is not an easy thing."
The Czech international did feel sorry for his former team-mate Carlo Cudicini in the opposite goal adding: "He may have conceded five goals but he made some excellent saves there. He did not deserve to concede five goals for such performance."