Real Madrid manager Jose Mourinho insists there will be no repeat of his famous dash down the Old Trafford touchline if his side progress to the Champions League quarter-finals at the expense of Manchester United.
Nine years ago, at the same stage of the competition, the Portuguese celebrated in such a manner after a last-minute Costinha goal sent FC Porto through on their way to winning the competition.
But the 50-year-old, who has also won the Champions League with Inter Milan, stressed he has mellowed since his brash days as the relative youngster who took European football by storm.
"That match was my first season in the Champions League. Now I have more than 100 matches and I can control my emotions in a different way," said Mourinho, whose side have to overcome the handicap of an away goal with the tie poised at 1-1.
"I look at the situation with different emotions and the approach is completely different.
"If I lose I don't cry. If I win, I don't run the 100 metres.
"But the happiness and sadness will be the same; whether I am sleeping well or not, whether I laugh a lot on the plane or pretend I am asleep.
"That is the same story."
All four of Spain's Champions League representatives - Real, Barcelona, Malaga and Valencia (the three of whom trail their opponents) - find themselves in testing second leg situations.
But Mourinho, who has just masterminded two victories over arch-rivals Barca in the Copa del Rey and league, does not believe that represents a power-shift.
"Everyone knows at this moment Spanish football is dominating in terms of national teams and clubs, but at this moment all the Spanish teams in the Champions League are in difficult positions," he said.
"If the Spanish teams next week are out of the Champions League it doesn't mean Spanish football is collapsing - that is football and it can happen.
"Manchester City went out because the draw had something strange to be put in the same group as Dortmund, and Real Madrid and Chelsea were also in a very difficult group with Shakhtar and Juventus.
"Last year Spanish football was also in trouble with the Champions League and you now have a very strong Juventus and Milan - who had fantastic first legs - so results sometimes don't reflect the situation."
Despite speculation he may return after more than a month out with a hand injury, Mourinho confirmed goalkeeper and captain Iker Casillas was not fit to face United.