The departing Robertson believes the expensive signings will lead the club into a bright future Join the Miguel Delaney: Inside Football newsletter and go beyond the game with exclusive insights Join the Miguel Delaney: Inside Football newsletter Join the Miguel Delaney: Inside Football newsletter TRY 1 MONTH FOR FREE I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Andy Robertson has said the summer signings who cost Liverpool £450m will