Chelsea are interested in Dinamo Zagreb defender Sime Vrsaljko.
Vrsaljko, 19, attracted enquiries from Arsenal during the January market.
The Telegraph says Blues assistant coach Michael Emenalo was in the Croatian capital on Saturday - before returning to sit on the bench for Sunday's Premier League match at home to Manchester City - to watch Dinamo Zagreb face Hadjuk Split.
And the Nigerian confirmed to Sports Kenovsti that Vrsaljko was player he was watching.
