Borussia Dortmund Vs Arsenal

Szczesny"We do realise that set pieces have been a weakness for us recently," he said. "We've conceded [a couple] of goals already and it's very early in the season.

"We did very well last season on set pieces and we're a bit disappointed. We've been working on it in training so hopefully we'll put that right on Tuesday."

Mertesacker
"When you play zonal, you need to attack the ball and try to get the best players out and mark tightly when they are in front of you," Mertesacker told Arsenal Player. "We lacked a bit of that intensity but we suffered a bit,