Chelsea manager, Graham Potter, has described their 4-1 defeat to Brighton on Saturday as “painful”.
Potter lost on his return to the Amex just seven weeks after he left for Stamford Bridge.
Leandro Trossard opened the scoring before two own goals from Ruben Loftus-Cheek and Chalobah.
Although Kai Havertz pulled one back, Pascal Gross restored Brighton’s three-goal lead.
Potter, speaking after the game, said: “Yes of course the scoreline and the defeat is a painful one. We didn’t really recover.
“Once the crowd were so engaged, it was a difficult one for us. The scoreline was painful. Brighton played a good game, especially in the first half.
“You can always look at goals and think you can do better. We have to take responsibility a bit in the first half. We have had a lot of football, but that’s no excuse. We couldn’t quite get to that level. We didn’t take our opportunities in attack and they did.
“We had some opportunities to attack them too but unfortunately we missed the pass or didn’t execute, then the scoreline was a painful one. When you lose you can always do better.”