Arsene Wenger last night warned Arsenal fans there was “no guarantee” their trophy drought would end with the Carling Cup in February.
The Gunners became the red-hot favourites for the first silverware of the season after reaching the last four.
An own goal from Wigan captain Antolin Alcaraz and a second-half strike from Nicklas Bendtner gave the Arsenal the 2-0 win over the Latics.
Arsenal have not lifted a trophy since the 2005 FA Cup. But in a season of bizarre results, cautious Wenger was not ready to predict a Wembley win for his side.
“You’ve seen many shock results in the Premier League and in this competition with Manchester United and Chelsea,” he said.
“You have to accept their is no guarantee we will win the competition just because we are in the semi final. We have to fight and play to win. You cannot say it’s not important to win, but it would be well not to make an obsession of it.”
Wenger made eight changes to his team last night – and then insisted the strength of his squad meant he did not need to buy in January.
“We already have fantastic players, international players, who are not getting enough games,” he said. “I think our squad is as good as Manchester United or Chelsea.”
Wigan lost striker Mauro Boselli with knee ligament damage while Victor Moses was taken to hospital with a suspected dislocated shoulder.
“We are worried Victor will be out for four to six weeks,” said manager Roberto Martinez. “It is difficult to take any positives tonight. We are not having much luck but it would be easy for us to feel sorry for ourselves. But we need to react like men. The next seven games are our priority to get out of this relegation scrap.”
Arsenal captain Cesc Fabregas has revealed he does not know when he will return to action after pulling a hamstring in the Champions League defeat at Braga last week.
“I don’t want to put a date on my return yet,” said the Spaniard. “I will take my time. I’ll just try to get back whenever I can.”