Jonny Hayes reckons shutting out Dutch opponents Groningen at Pittodrie has put Aberdeen in the driving seat ahead of their Europa League return in Holland.

The Dons fought out a closely-matched 0-0 stalemate with the Eredivisie outfit in the first leg of their second qualifying round clash on Thursday.

And Irish winger-turned-full-back Hayes believes not conceding at home is more important that taking a lead to Groningen's Euroborg home.

He said: "When we look back at the tie, not giving an away goal to Groningen will be a big factor.

"If we had said before the game it would end 0-0 we might have thought about taking that, but looking back on the match now I would definitely have taken it.

"It will obviously be tough going over there but if we can get the first goal, knowing the players we have and how good we are on the counter-attack, it will be a major step in the right direction.

"It was always important for us not to concede and, as a defender now, I'm quite happy with that."

Hayes expected to be put under the cosh by the visitors but was surprised to see Groningen sit in for much of the match.

The Dons had the best opportunities as Peter Pawlett and Niall McGinn threatened to find the net in the first half but Derek McInnes' side know they will now have to score in Holland if they are to progress.

"Tony Docherty and the manager have done their homework on Groningen so I'm sure they will have done their homework on us," said Hayes. "They will have watched the videos of us and know how good we can be on the attack."