Republic of Ireland manager Giovanni Trapattoni admitted that he is unsure about which formation to use at Euro 2012 following his side's 0-0 draw with Hungary on Monday.
The Italian's men earned a respectable draw at a rain-soaked Ferenc Puskas Stadium in their final warm-up game before the tournament in Poland and Ukraine.
However, the former Juventus boss revealed his concern at playing teams using a lone striker system, such as that employed by Hungary, after the match.
Trapattoni told Setanta Live: "There is a situation, when this type of opponent play with only one striker and one more in midfield, we have one less [in midfield].
"I have to think about if we can play with only one striker. Now I don't know.
"Maybe Croatia play differently, but when we play a team like this we have to think about playing with only one striker."
Despite his formation dilemma, the 73-year-old was quick to stress the importance of not losing the friendly clash and coming away without any fresh injury concerns.
"We didn't lose and we have no injuries. This is important," he said.
"It was tough in the first half, they dominated us. They deserved to score. They deserved to score one or maybe even two goals; only Shay Given saved us.
"In the second half we changed the team a little bit and also we could have scored one goal, a minimum of one goal. The fresh energy with Walters and Cox, they make more pressure on the opponents."