Looks like it is serbian momentum with a flock of young guns inspired by what made the Nole/Viktor/Ziki/Tipsy/Bozo generation....
So far in 2014 players born in 1992 and after have compiled 8 title this year with maiden title for Tepavac and Krajinovic (1992 but longtime injured).
Their names : Petrovic (1992) Krajinovic (1992) Tepavac (1994) Krstin (1994) Djere (1995) Milojevic (1995) and even younger Conkic and Kecmanovic. Rest of the 10 are Nole younger brothers but we already lost them
In comparison 2013 to date was only 1, 2012 was 0, 2011 was 3 but with now older player (Zekic and Dutzee).
Two other interesting things :
That brings Srbija to a 2014 title digest so far of 12; when 2013 was 8, 2012 was 3 and 2011 was 10 mostly because of Nole.
Young girls are doing almost the same with Jorovic, Jokic and Stojanovic.
The Dog, Mani, Almagro, Brown, Kyrgios, Klizan, Deliciano, Coric : GOAT slayers