Huddersfield Town manager David Wagner has urged his defenders to get stuck in against Arsenal at the Emirates on Saturday.
The Terriers head into the clash as heavy underdogs, but Wagner hopes they can physically impose themselves against Unai Emery's side, who have gone 20 games unbeaten across all competitions.
"In these situations we have to be more focused, show more concentration and be more resolute as well," said Wagner.
"We also have to be more brutal in one or another situation to make sure we show everybody that we fight to keep the ball out of the net.
"This will be, for sure, very very important on Saturday against Arsenal.
"We have to fight with everything we have to keep the ball out of the net.
"This is the first thing you have to make 100% right if you like to get something out of a game against a team like Arsenal away."