Arsenal's Unai Emery feels his side must work harder to cut out errors that cost them to concede two goals in their win over Cardiff. Pierre-Emerick Aubameyang and Alexandre Lacazette both score as Arsenal had to beat back Cardiff City twice to claim all three points. Pierre-Emerick Aubameyang and Alexandre Lacazette both score as Arsenal had to beat back Cardiff City twice to claim all three points. Arsenal manager Unai Emery says he wants the club's defence to continue to build from the back, despite several errors against Cardiff City. Goalkeeper Petr Cech looked especially uncomfortable as he made two errors in distribution while under pressure in the 3-2 win. But Emery backed his...
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