Transfer news: Villa sign Sarkic
The 18-year-old stopper has penned a three-year deal with the claret and blues.
He has come through the youth system at the Belgian club - which oversaw the development of Vincent Kompany and Romelu Lukaku - and has been playing for their U19 team.
Internationally, Sarkic featured for Montenegro in the U17 European Championships of 2013 and has just been called up into the U21 squad for their European Championship qualifier in Moldova, which takes place this Friday.
In other news, U21 regular Riccardo Calder has joined Dundee until January 2016.
He will now link up with manager Paul Hartley at Dens Park in the Scottish Premiership.