Meet the officials | Swansea City v Cardiff City

Oliver Langford will be the man in the middle when Swansea City face Cardiff City in Sunday's south Wales derby.

It will be the first time Langford has visited SA1 this season; last term he officiated home games against Bristol City and Southampton.

Having been refereeing since 1995, Midlands official Langford was promoted to the List of Referees in 2008. 

When Select Group 2 was introduced by PGMOL ahead of the 2016-17 season, he was one of 18 referees added to that list.

He has taken charge of two play-off semi-finals and the 2017 FA Youth Cup final. Despite not being named a Select Group Official, he is VAR trained and can be part of the officiating team at the top level.

On Sunday he will be assisted by Andrew Fox and Alex James. Keith Stroud will be the fourth official.