Arsenal manager Arsene Wenger has congratulated his side's "remarkable" centre-backs after the Gunners kept a clean sheet in their 1-0 win over Burnley on Sunday.
Alexis Sanchez slotted home a penalty in second-half stoppage time after Aaron Ramsey was brought down by Clarets defender James Tarkowski.
The win extended a run in which the Gunners have kept a clean sheet in five games, and Wenger has said that his defenders deserved praise.
"We won 1-0, but I'd like to congratulate our three centre-backs again today, because they did a remarkable job," the Frenchman told Arsenal's website.
"I give us a merit today because we didn't concede a goal. Our defence worked well again and we were relentless in the second half. We kept our heads and in the end we got the penalty that we wanted.
"The first half was an even game but in the second half it was all us. We changed our organisation at half time, and I told the players that we were at 80% of what we could do. We had to get more out of ourselves in the second half and I think we did that much better."
Arsenal's next fixture is at the Emirates against Huddersfield Town, before meeting Manchester United in North London in a crunch Premier League clash.
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