Louis Flower scored a last-gasp goal as Albion grabbed a thrilling win over Celtic at the Amex in the Premier League International Cup.

The Seagulls won 4-3 after seeing a 3-0 lead built inside half an hour wiped out.

Flower ran on to a flick from Mark O’Mahony and made ground before sending his shot gently past the advanced keeper inside the far post.

O’Mahony had earlier scored twice from close range as the hosts looked set to run riot.

Leigh Kavanagh headed the opener and O’Mahony’s double took him to 11 goals for the 21s already this season.

The teenage striker from Cork was recently on the bench for Roberto De Zerbi’s senior side.

Celtic, with Mitchell Frame impressive on their left side, pulled a goal back before half-time and drew level in the second period.

But Albion grabbed the win with seconds remaining.

Albion: Cahill; McConville, Kavanagh, Atom (Peart 66); Nilsson, Hinchy, Chouchane (Knight 82), Slater; Mullins (Flower 82), Barrington (Ifill 77); O’Mahony.