Arsenal boss Arsene Wenger has warned Champions League opponents Borussia Dortmund that his side's confidence has returned.
Arsenal earned their first Premier League win of the season as they defeated Swansea 1-0 on Saturday, helping to lift the mood at the club following their recent 8-2 loss at Manchester United.
Wenger next takes his team to Dortmund on Tuesday for his side's opening game in Champions League Group F and he believes the Gunners will demonstrate they are on an upward curve.
He said: "The confidence is back now. [We] had not won yet in the league and that had played a big part in our head. In our job, momentum is vital. We just want to play to win.
"When you look back when we travelled to Udinese [for the Champions League play-off] everyone expected us to win the game and we did, we want the same against Dortmund."
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