Former Hammers boss Sam Allardyce has lifted the lid on the club’s fractious relationship with one-time footballing prodigy Ravel Morrison.

Allardyce, who was West Ham chief for four years, said Sir Alex Ferguson had warned him of what to expect with Ravel when he sold him to West Ham in 2013.

Allardyce alleged Morrison spent Christmas in Manchester rather than returning to London for a festive period in which the club were fighting a relegation battle.

In a serialisation of his autobiography, Big Sam, published in The Sun , Allardyce said: “The end came after we’d played at Manchester United.

“Rav stayed up north to see his family and didn’t come back. He wasn’t injured, he just didn’t fancy getting involved in our festive relegation battle.

“We couldn’t get hold of him until the lads saw a picture of him on Facebook enjoying Christmas lunch with his family while they were preparing for our Boxing Day game.

“Rav was potentially a £50million player but he has blown his career and it’s unlikely to happen for him now."

Morrison missed three matches over Christmas during 2013-14: which followed the 3-1 loss to Manchester United, the 3-1 home defeat by Arsenal, the 3-3 draw with West Brom and the 2-1 loss to Fulham on New Year’s Day.

After blowing hot and cold for West Ham, Morrison made the move to Italian side Lazio in the summer, who are no strangers to mercurial English attacking midfielders .