Arsenal and Celtic are chasing Dinamo Zagreb midfielder Ognjen Vukojevic.
The Daily Mail says a former Under-21 international, the six-footer is expected to feature in the Euro 2008 squad due to be named by Slaven Bilic next month.
And Espanyol, Arsenal and Bayern Munich are just three of the clubs linked with the player in the last year.
After tracking the midfielder's form for some time, however, Celtic could creep under the radar before the European Championships after watching the player in last night's derby match between Dinamo and NK Zagreb.