Arsenal manager Arsène Wenger told the media that his side have been warned against complacency ahead of Wednesday night’s Champions League tie against Dinamo Zagreb.

The boss last took an Arsenal side to Zagreb nine years ago and enjoyed a 3-0 win, but knows how difficult that game was and expects another tight affair as the Gunners begin another Champions League campaign.

“Our last visit was a very tough game. We needed to be patient against a very strong side. They had a very strong team,” the Arsenal boss told the media in Tuesday’s press conference.

This latest edition of Dinamo Zagreb aren’t bad either, and Wenger is expecting another tough game thanks to their 41 game unbeaten streak.

“We have to play at our best to beat them,” said the Arsenal boss.

“They have not lost a game for 11 months.

“I’m sure that Dinamo Zagreb will be 100 per cent focused tomorrow. We have to show we can compete with them.”

The Croatian side and their fans will be well up for this one, and Wenger’s men – without Ramsey and Bellerín – will have to be switched on. Any complacency or lack of focus could prove costly and, in a group with Bayern Munich and Olympiacos, Arsenal really can’t afford to slip up.