The north London side travel to Wembley on Saturday looking to put their Premier League struggles behind them and set up a showdown against either Hull City or Sheffield United.
“It is going to be a fight but we should face it as any other normal match
Wigan have already knocked out Manchester City on their way to the last four and also beat the Citizens in last season’s final at Wembley.
And Gunners youngster Gnabry is expecting a tough test against the Championship side.
“It would mean a lot [to progress],” Gnabry told Arsenal Player.
“Since we won the game against Everton and moved on to the semi-finals, I have been thinking about it a lot. It is a chance for us to win a trophy this year, and we have a pretty good opportunity.
“It is going to be difficult, though. Wigan will do their best to win the game as well to get another shock in against a Premier League team.
“It is going to be a fight but we should face it as any other normal match: don’t be scared because they are in the [Championship].
“We should be favourites and if we play our normal game, there should be no doubt that we can win it.”
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