As a junior , he made it to number 31 in the world and reached the quarter - finals of the boys ' singles at the 2000 US Open .
Born in Slovenia , Cerovic is from the Croatian city of Rijeka .
As a junior , Cerovic made it to number 31 in the world and reached the quarter - finals of the boys ' singles at the 2000 US Open .
Born in Slovenia , Cerovic is from the Croatian city of Rijeka .