Arsenal boss Unai Emery says Laurent Koscielny will be stronger for defeat to Southampton.
Emery admits Koscielny's performance was a big plus from the day.
He said, "It was very good news for Koscielny, a very good performance over 90 minutes. Physically, he could play the 90 minutes. Other players, like Xhaka played very well, and Lichtsteiner also.
"We conceded not many chances for them, but their efficiency was good. We also had chances to score more than the two goals but we didn't score. Maybe the difference is this. The control in the game over 90 minutes is more for us than them. We need to continue improving details, because three times we conceded chances."