Matt Clarke’s leadership qualities shown at Pompey will hold him in good stead in the Premier League.
Brighton boss Graham Potter believes the experience of operating at a club of the Blues’ stature will serve Clarke well in the top flight.
Clarke’s move to the Seagulls for a fee of £4m potentially rising to £5m was finally completed last month.
Potter followed the 22-year-old’s progress closely at Fratton Park and saw character traits beyond the defender’s years.
He told brightonandhovealbion.com: ‘Matt has played a really big role, with the demands of a big club in League One, trying to get out of the league.
‘He's been their captain, so from a personality perspective he’s played a huge role there considering his age. He's coming to take the next step.
‘We want to try to help him with that in an area where we've got a lot of competition anyway. We are really looking forward to working with him.’