Emiliano Martinez says Arsenal are determined to build on victories over Borussia Dortmund and West Bromwich Albion against Southampton on Wednesday night.
The 22-year-old has impressed in goal after replacing the injured Wojciech Szczesny against Manchester United last month, keeping clean sheets in his last two games.
Martinez's shut-out at The Hawthorns was the first of his Premier League career, and Martinez was delighted at the team's defensive performance.
Read Emiliano's full interview in the Southampton programme
"You have to stay alert all the time to deal with crosses," the goalkeeper said. "In the last five minutes or so [against West Brom], I went for two crosses to try and help the team.
"I think we did well defensively as well and the guys helped me a lot. Per and Lolo [Koscielny] were both brilliant and I’m really pleased with the defensive performance.
"Having lost two in a row, against Swansea and Manchester United, where we were a bit poor defending counter-attacks in the second half, it was important to come to West Brom and get three points. The win against Dortmund helped give us the confidence to do that and the clean sheet is an extra bonus.
"We’re all working really hard. We’ve had a few meetings and I think everyone is switched on."
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