Sports Game Q about cam and player location

im makeing a soccer game
when a player is selected and is off/ not in the cameras vew, how do i make an arrow on the side of the screen pointing to the location of the player like most other sports games

basket ball games… soccer games… hockey games… etc.

can someone please help me?

thanks

-Make your arrow mesh which is tracked by this player(Track to actuator)
But you have to solve other question first as for eg. a python script which select which player is passed to Track to Actuator