MANCHESTER UNITED are reportedly interested in triggering the release clause of Napoli star Kim Min-jae, but will have to fend off a lot of competition.

The Mail Online has reported that the Red Devils are among three Premier League clubs who are keen on a move for the centre-back.

The 26-year-old is rumoured to be interested in a move to the English top flight and will have plenty of options if his clause is triggered.

United are said to be joined in the chase for the South Korea international by Liverpool and Tottenham.

Kim has been a crucial part of Napoli’s impressive campaign this season.

He has featured 36 times for the club already as they sit 16 points clear at the top of Serie A with a Champions League quarter-final tie with AC Milan to come.

The former Fenerbahce defender joined the Italians in the summer for a modest £16million, but is understood to be valued significantly higher now.

The £40million release clause in his contract would see him leave for below his market value after only one season at the club.

Napoli could try to remove the clause by offering Kim a fresh set of terms despite his recent arrival.

Manchester United are looking to improve their defensive line after their leaky defence conceded seven goals against under-achievers Liverpool.

Liverpool and Tottenham are also both looking for defensive reinforcements and will join United in the battle for Kim’s signature alongside the battle for a place in the top four.

Other European sides are said to be looking at triggering his release clause with Bayern Munich and Paris Saint Germain amongst them.