Arsène Wenger has hailed the impact his second-half substitutes made in Saturday’s FA Cup victory over Brighton.

Olivier Giroud twice gave Arsenal the lead at the Amex, but each time they were pegged back by Gus Poyet’s vibrant Championship side.

Wenger reaction
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 Wenger introduced Theo Walcott, Jack Wilshere and Kieran Gibbs after the interval, and the former’s late goal helped secure a narrow 3-2 victory.

“They came on with great spirit, with their qualities and they are in full power at the moment,” the manager told Arsenal Player.

“The other players were tired. Santos and Rosicky have not played for a long time, while Oxlade-Chamberlain has missed a bit of competition as well. When you bring on fresh legs of that quality, it helps.

“It was a win [based on character] because Brighton came back twice and had the crowd with them. In the second half, our movement and power were superior and allowed us to score, and again Giroud scored two and Walcott scored one so that is good for their confidence.

“Yes [there are concerns about the two goals conceded]. On the second goal, we did not stop the cross or deal well with it. But you have to give Brighton credit as well, they were dangerous on their right side and always created dangerous situations.”

Arsenal host Liverpool at Emirates Stadium on Wednesday night, and Wenger insists his side’s self-belief is growing after two successive wins.

“That is what we want to show against Liverpool. We do not have much time to rest, and we want that level of confidence in the game,” he said.

“It will be a game of big importance. Let's prepare well, we know we have done the job [against Brighton] so now we can focus on the Premier League.”

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source Rob Kelly 28 Jan 2013