Graham Potter has backed resurgent Shane Duffy to have a long-term future at Brighton.
Duffy capped his south coast rejuvenation with a thumping header in Brighton's comfortable 2-0 Premier League win over Watford.
The 29-year-old was surplus to requirements last term and endured a difficult loan stint at Celtic, with his father's death among a number of off-field tribulations.
But Ben White's £50million Arsenal switch has opened a space, and Duffy has seized his chance to step back into regular contention.
Asked if Duffy can carve out a long-term niche in the Brighton ranks, boss Potter replied: "Yes, I think he's come back pre-season really, really well, training really well.
"And he's come into a group that's developed from where it was at the start of my time here.
"He's enjoying himself, his football, there's a bit of clarity on what's expected of him and what he can contribute to the team.
"He's our player, and we understand his qualities.
"He brings a lot to the game and to us, he's really important to us and just happy that he's enjoying his football."
Duffy's thundering header from Pascal Gross' corner and Neal Maupay's neat finish from Yves Bissouma's assist eased Brighton to a commanding victory.
Republic of Ireland defender Duffy appears ready to put his previous trials behind him, leaving Potter delighted on an emotion-laden afternoon.
"I'm really happy for Shane, he's had a really tough year on and off the pitch," said Potter.
"But he's learned a lot from that experience, and he's come back to the club in a really good way.
"He'll always be someone that everyone here loves, and that will never change.
"But he's had time to evaluate himself, his life and everything that goes with that.
"And since he's been back with us, he's been fantastic.
"If you conduct yourself well and give yourself a chance on a daily basis, then you give yourself a chance to play well.
"That's what he's done and it's really paid off for him.
"Everyone here loves him, myself and the staff have always loved him and we're delighted for him for what's happening now.
"He's had a really tough year, he lost his father suddenly, and that's quite clearly something that's extremely tough to deal with.
"Then he had to cope with lockdown in a strange city, and that hadn't gone well on the pitch, it was disappointing for him and Celtic.
"And sometimes you reflect on what changes you can make.
"He's done that, come into a good group, and environment.
"And we all just want Shane to be happy, because when he's happy, he's fantastic."