I have believed for a long time that some similar names are pronounced with an "s", such as:
troicky = troisky
wosniacky = wosniasky
maybe I have been wrong all this time. I would like to know some first-hand opinion.
Wozniacki = Voz-ni-at-ski (although I often hear her referred to as Woz-ni-ak-y)
Troicki = Tro-it-ski (although he is often referred to as Troy-key