Brighton boss Roberto de Zerbi says there'll be no underestimating FA Cup opponents Grimsby.
The two teams meet for a place in the semifinals.
De Zerbi said, "We started to think about Grimsby at the end of the Palace game and we know very well the importance and the difficulty of the game.
"Is Charlton a reminder of what can go wrong against a team you are expected to beat? Yes, but I think we didn't make a mistake of arrogance.
"We played well, I remember. We didn't find the right moment, the right way to score, the problem wasn't arrogance.
"We have to play with tempo, without arrogance, but we are Brighton and if we play at the same level as Leeds, Palace in the last game, we have a big chance to win the game."