Brighton are eyeing Lokomotiva Zagreb defender Denis Kolinger.

The Sun says the Seagulls, Reading and Middlesbrough are tracking Kolinger.

The defender has been outstanding in the Croatian top fight this season and his performances have alerted a host of English clubs.

The 24-year-old was born in Germany but qualifies for Croatia through his parents.

Seagulls boss Chris Hughton has Lewis Dunk and Shane Duffy at the heart of his defence and could see the big Croat as an alternative to his first-choice pairing.

Kolinger has another two years on his current deal and could be available for a cut-price £1million as he is keen to move to England this summer.