Crystal Palace boss Patrick Vieira admits they need to find their aggression again ahead of tonight's clash with Brighton.
Ahead of tonight's derby, the manager called on his players to adopt a different "mindset" and be more ruthless in the final third.
"To score, we have to be more aggressive offensively," Vieira said. "The mindset of some of our forwards has to change. We have to have more of a killer instinct.
"We have had situations in games when we weren't playing really well where we've had opportunities to score goals and we don't take them. Especially in the Premier League, with the quality of the teams we are facing, we have to be more ruthless. I have to give them the confidence and freedom to go and express themselves.
"They have got the quality and it is allowing them to believe more in themselves."