Chelsea shot stopper Robert Sanchez was given an earful by Brighton fans on Wednesday night.
As the two teams played out a Carabao Cup third round clash, which Chelsea won 1-0, Sanchez made his first appearance against his former club.
While he did commit an error in possession, he was not punished, and he ultimately kept a clean sheet.
However, there were occasions in the game when the away fans were mockingly cheering his successful passes.
For their part, Chelsea were delighted to get into the fourth round, particularly after their poor start to the Premier League season.
Nicolas Jackson scored the only goal of the game, with Brighton unable to create any meaningful moments in front of goal.