Real Madrid forward Cristiano Ronaldo has vowed not to celebrate if he scores in the Champions League round-of-16 tie against Manchester United.
The Portugal international enjoyed a six-year spell with the English Premier League leaders before leaving them for Real in 2009.
Ronaldo, who will return to Old Trafford for the first time since leaving United in the second leg on March 5, still has warm feelings for his former club.
"I will not celebrate my goal if I manage to score at Manchester United," Ronaldo told AS.
The 27-year-old recently expressed his gratitude towards United manager Sir Alex Ferguson, insisting he has played a key role in his development.
"(Ferguson is) a fantastic person – a human person. He taught me many things," Ronaldo told The Sun.
"Like I said before, he's like a father in football. I really miss him and my relationship with him."