Manchester United legend Ryan Giggs says assistant coach Carlos Quieroz was the unsung hero for the 2008 Champions League final win over Chelsea.
Quieroz had the players practice penalties all week in preparation for the game, which United won in a dramatic shootout.
"It's not a nice walk, your legs feel like lead," he told BT Sport. "All you've got to do is remember what you've practised because in my experience people miss penalties because they change their mind.
"I took 15 penalties that week, I scored 14 - the one that I missed hit the post. I knew the side, I knew the technique and it was just about sticking to that.
"It was Carlos Quieroz really. He said we're going to practice it and recreate - obviously, you can't.
"We recreated that walk at training. He said just pick a side and don't change that side.
"Of course, if you missed four or three on the trot, maybe you will - but I scored 14 out of 15 so I felt confident. I knew where I was going to put it and it was then just about execution."
