legionar

1. (in sports) player based abroad
   Selektor je pozvao sve naše legionare. — The national coach called up all our players based abroad.
2. legionary; legionnaire
   Rimski legionari su prolazili ovim putem. — Roman legionaries marched along this road.

In Serbian sports media it most often refers to Serbian players playing abroad (naši legionari); foreigners in the domestic league are usually called stranci, though legionar is also used for them.