Spain coach Luis Enrique set each of his players the "homework" of practising 1,000 penalties ahead of the World Cup, saying he is convinced they are not a lottery.
The 2010 world champions face Morocco in the last 16 today, with the threat of extra-time and penalties looming in the knockout phase of the tournament in Qatar.
"Over a year ago, in one of the Spain camps, I told them they had to get here with at least 1,000 penalties taken," Enrique said on Monday.
"I imagine that they have done their homework."