Glentoran have announced three new signings including Northern Ireland international Luke McCullough.
Former Tranmere Rovers and Doncaster Rovers defender McCullough has joined the Irish Cup champions alongside Derry City midfielder Jamie McDonagh and Institute goalkeeper Rory Brown
McCullough - who has won six international caps - is a former Manchester United youth player who can also play as a defensive midfielder.
McDonagh is a former Northern Ireland youth international who began his career at Sheffield United and also had spells with Greenock Morton and Sligo Rovers before joining Derry in 2018.
Former Republic of Ireland Under 18 goalkeeper Brown impressed for Institute last season despite the club's relegation to the Championship.
"Luke is a massive addition to our squad, he can play multiple positions at centre back and centre midfield," McDermott told the club's website.
"He has vast experience at the highest levels including a number of caps for Northern Ireland. He's another leader and allies a strong physical presence with great footballing ability. For us to get a full Northern Ireland shows our intent to progress the Glentoran project.
"Jamie will be a brilliant addition. He has been one of the most consistent performers in League of Ireland the last two seasons so he will definitely strengthen us," added McDermott.
"Rory is without doubt the best young goalkeeper in Northern Ireland. Although he's still only 20, he's already experienced in Irish League. He has aspirations to move across the water again and Glentoran gives him the full time platform to make that a possibility."
