Brighton will demand a £2m loan fee from Celtic in any deal to take Shane Duffy to Parkhead - according to a report.
The 28-year-old is wanted man with a clutch of clubs circling around the Republic of Ireland central defender.
Duffy's time on the south coast appears to nearing the end with Graham Potter investing in his backline this summer with a deal for Ajax's Joël Veltman.
Celtic boss Neil Lennon is understood to be a major admirer of the former Blackburn defender but West Brom, West Ham and Burnley are also in the mix.
But the Daily Mail report Duffy is keen to make the switch to his boyhood heroes despite serious interest from the English trio.
Duffy has made 130 appearances for the Seagulls and has been lauded for his goal threat from set-plays.
Celtic starting pair Chris Jullien and Kris Ajer were integral to the Hoops last season but Lennon has been looking to strengthen defensively after back-up Jozo Simunonvic left at the end of last season.
There's also been fervent speculation over Ajer's future with Serie A big-hitters Milan believed to be keen on the Norway international.
