Derby County boss Frank Lampard was left frustrated with his players after their FA Cup defeat to Brighton.

Goals from Anthony Knockaert and Jurgen Locadia booked Albion's place in the last eight of the competition, and Hughton was delighted with his team's disciplined performance against the Rams, who pulled a goal back through Ashley Cole.

“The first half killed us," Lampard admitted, speaking to RamsTV.

“It's the first half that is the lesson of that game because if you come to a Premier League team without urgency and allow them to play and create chances then they are going to score.

“The chalk and cheese of the first half was evident. The team had urgency and the substitutes helped after half time. I thought we were good and deserved to get ourselves back in the game and we were the team pushing at the end so we can take something from it on a positive note, but what a great lesson for us.

“I couldn't get it because the talk before the game was to play without fear. We have done it before against Premier League teams, so everything was there and then sometimes performance comes.

“If we play with some below par performances within our 11 on the pitch then you are going to struggle. I was clear in the message at half time and I wanted to be honest and I think I was.

“I made a couple of changes to try and inject something into the game and the second half was certainly better.

“If you play passively like we did in the first half then you have no chance, if you play with aggression and desire, all those attributes, like we did in the second half then we know we have a great chance but now we have the league to focus on."