Arsenal boss Arsene Wenger is remaining cautious of a very Brazil-orientated Braga outfit ahead of tonight's Champions League opener.

The Gunners take on the Portuguese club at the Emirates in the first group stage match and is well aware they are a dangerous bunch of players.

"It depends on the quality of Braga. What I know about them is that they are basically strongly Brazilian influenced. Many Brazilian players," he said.

"They are a team that are physically strong, well organised and play with very quick transition from defence to offence. We know their players. But what impresses me is that they finished in front of Porto, who we played last year.

"And in the qualifying round they knocked out Sevilla. They won at home and away, so we have to be on our toes.

"We are in a very tricky group because Donetsk are a good team, Braga are a good team. We don't know much about Partizan. We must win our home games."