By Alex Stevens

Liam Cooper has signed an extension to his Leeds contract, according to a report.

The Yorkshire Evening Post claim the defender, 25, has penned a deal that will keep him at Elland Road until the summer of 2018.

Cooper signed a three-year contract when he joined from Chesterfield in 2014 but it is said that, while it went unannounced, he agreed a 12-month extension last season.

This is a major boost for Garry Monk as Leeds step up the process of tying key members of their playing squad to long-term deals.

Cooper has slipped down the centre-back pecking order over the last month following the development of the increasingly impressive partnership of on-loan pair Pontus Jansson and Kyle Bartley.

But Cooper has made seven appearances this season, five of which have been starts, and remains one of three senior players vying for two positions.

In total, the £600,000 signing has played 79 matches for Leeds during his two-and-a-bit seasons at the club.

Leeds currently sit in 11th place in the Championship ahead of Saturday’s trip to Derby, after a run of four wins from five league matches.

A win against Derby and newly appointed manager Steve McClaren could see Monk’s side move to within touching distance of the play-off positions.

In other Leeds news, the club are set to sign a Spain international in the January transfer window.