West Ham United boss Sam Allardyce says their move to Stratford was the right decision.

Allardyce believes it is necessary if the club is to progress.

"We need to move to this new stadium to compete with the likes of Chelsea, Arsenal and Tottenham in this world," he said.

"I can understand why they don't want to leave Upton Park because they probably came here in their infancy and their dad, uncle or grandad brought them so they've grown to love this stadium.

"But at the end of the day, football has to progress."