Brighton boss Roberto de Zerbi admits he's frustrated losing Leandro Trossard.
The Seagulls have sold the attacker to Arsenal this week.
De Zerbi said, "The situation was difficult I think, because I understood he wanted to leave.
"I'm sorry for the last period because I prefer when people are clear not when there is some different behaviours. I think anyway we are a good team and we can play well with Leo or without Leo.
"In the transfer market, you can always improve. You can always buy new players but we are at a good level now and the players are very good players. It's not so easy to improve this squad. But if there is the possibility with Tony (Bloom) and the club, we will do something."