Arsenal manager Arsene Wenger has insisted that the team will qualify from their Champions League group after losing their opening match in this season's competition.

The Gunners were beaten 2-1 by Dinamo Zagreb in Croatia on Wednesday, on a night when they lost striker Olivier Giroud to a sending-off in the 40th minute.

Bayern Munich currently top the group after they beat Olympiacos, but Wenger is confident that Arsenal will recover from their loss to reach the knockout stages.

"Overall, I believe we have problems to start in every competition this season. But I am confident we can put that right in the next five [Champions League group] games," the Frenchman told BBC Sport.

"Mathematically, we can qualify without any problem if we produce our performances that we want at home."

Arsenal face Olympiacos in their next Champions League match on September 29.