http://football.org.il/Leagues/Pages/PlayerDetails.aspx?PLAYER_ID=84605 I found Jordan Gruber on the Israel Football Association's official website. He plays in the Israeli third tier.
Maccabi HaShikma/Ramat Hen. They are currently in sixth place, only seven points out from a promotion spot to the Liga Leumit (National League - second tier). He has played six league matches, but has yet to score a league goal. He generally has been coming on as an early substitute.
Thanks. Does it say what he did during the 06/07 season by any chance? Theoretically he should have still been in Belgrade but I could never confirm it.
Was with Hapoel Marmorek in 2010: http://books.google.com/books/about/Hapoel_Marmorek_F_C_Players.html?id=CevSbwAACAAJ Not sure if he's played since.