Second half goals from Moussa Djenepo and Nathan Redmond meant it was the Saints who headed back along the south coast with the win, but the Frenchman was keen to emphasise the strong mentality the Seagulls showed.
He said, “It was a tough game for us, the red card made it difficult, but the team spirit was spot on.
“Unfortunately, it was a bit too much to get a point, but we fought until the end and have to take the many positives going forward and bounce back.
“We made some changes in the second half and continued to create chances. We kept playing well and even when they scored, we still had opportunities – unfortunately we couldn’t take those.”
The summer signing was handed his first Premier League start since joining the club from Brentford last month and reflected on a proud moment despite the result.
“It was obviously nice to get my full debut and it was very exciting, but the team is always the most important thing,” he continued.
“A debut with a defeat is not the same, so it’s mixed emotions for me.
“The minutes on the field are important, I didn’t play during pre-season so I’m still finding my rhythm in this league.
“I feel I’m ready now after starting for the first time, and hopefully there will be many more starts to come for me.”
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Maupay also spoke about the attacking fluidity which has already become visible this season under new head coach Graham Potter, and the striker highlighted the problems it can pose opposition defences.
“I played in a few positions on Saturday; I started on the right, but the manager gives us freedom to switch at times ,which is good.
“That freedom gives us a lot of chances and it’s not easy to defend against.
“Leandro [Trossard] has really good quality to find chances for us, I felt he and I combined well today, and you can see what he brings to the team.”