The Ivory Coast international had been warned about making rash challenges by the Portuguese but gave away the softest of penalties against Leicester
Aurier conceded a soft penalty in the first half when he fouled Wesley Fofana in the box, despite the visiting player moving away from the target.
Mourinho had previously been caught on camera during Amazon documentary ‘Spurs All or Nothing’ telling Aurier that he was scared of him giving away a “sh*t penalty with VAR”.
“It was a mistake, not a moment of madness,” he told Sky Sports. “I have to admit, you have to know where you are when you’re in the box. You have to know that the player was going away from goal without any kind of danger. You have to describe it as a mistake.
“I know my players’ qualities. Serge was phenomenal against Liverpool – probably our best player – and today, he made this mistake. It’s not fair to say if it cost us the three points. There were other players who showed an attitude that I did not like.”
Mourinho did concede, however, it was a blow that his side went in behind following a first half they had appeared comfortable during.
“You expect to go in at 0-0 but we went in 1-0 down. Then in the second half we conceded another own goal,” he said.
“The reaction was positive. Kasper Schmeichel made a couple of important saves, but it’s a game we lost with a penalty and an own goal.
“With the result, it looks like our opponent was totally in control, but that’s not the reality. Our performance was not good but the game was not like ‘they deserved to win’ or ‘we deserved to lose’. It was not a good game, it was a poor game.”
Defeat means that Tottenham have lost their last couple in the league and have consequently fallen three points behind Liverpool in the standings.
Spurs will play Stoke in the Carabao Cup on Wednesday in their final fixture before Christmas.