Leyton Orient have completed the signing of Sam Ling on a two-and-a-half year.

The 21-year-old, who is the son of Orient director of football Martin, arrives from Dagenham & Redbridge where he has made 29 appearances this season.

The defender came through the youth ranks at Brisbane Road, but never made and appearance for the club and returns for an undisclosed fee.

He joined the Daggers in 2016 and made 11 outings for the club last season.