Republic of Ireland manager Martin O'Neill has told his players set pieces at both ends of the pitch could be key to what they can achieve at Euro 2016.
O'Neill believes dead-ball situations in their own and the opposition penalty areas might prove the difference between success and failure in tight matches.
"I have said this before -- I said it to my players way back at the beginning of the qualification," he said.
"It sounds crazy in this day and age when you have got wonderful footballers -- [Cristiano] Ronaldo, [Lionel] Messi, players like that -- that even big matches, Champions League finals, World Cup finals, are being decided on set pieces if not penalty kicks.
"They are important in games, so you have to be able to defend them and try to make something of them when you have them.
"Hopefully the game isn't just based around that, but they are still part of the game and you have to try to deal with them."
O'Neill's side struck from a corner in the 1-1 draw with Netherlands on Friday when Shane Long scored after a John O'Shea header was parried.
Norwich City's Robbie Brady delivered that corner, but O'Neill stressed: "If Robbie doesn't play, I think we have got other players who can deliver the ball -- but he just happens to be pretty good at it.
"I'm hoping he's got over the disappointment of being relegated with Norwich. He is important to us, and he is growing in stature."