West Bromwich Albion manager Steve Clarke has said that his team must be focused from the start when they face Arsenal in the Premier League on Sunday.

The Gunners have won their last 10 games and have scored the opening goal inside 23 minutes in five of their six Premier League matches this season.

The home side go into the match full of confidence after beating Manchester United last weekend at Old Trafford, but Clarke is well aware of the threat the league leaders pose.

"The way they are playing is tremendous. This season they have looked really strong," he told the club's official website.

"I watched Arsenal in midweek against Napoli. They were absolutely outstanding and in the first 30 minutes they blew Napoli away – and Napoli are a good team. We have to be ready for that. We have to be on our guard.

"In most of the games Arsenal have played this season they have always started very, very quickly and they've managed to get their noses in front, and from there they control and dominate the game."

West Brom are currently 10th in the Premier League table, level on eight points with Cardiff City.