How do I redeem 3 knights for largest army points?

[Awoc27]

Hey guys,
I'm new to the app. Whenever I collect 3 knights and try to collect points for largest army, I always seem to use the knight for the other reason... moving the robber. Am I selecting something wrong or something else that I am supposed to do?

Thanks for your help.

[Administrator]

@Awoc27 Knight cards do allow you to move the robber. After you played a Knight card it will automatically be added to your largest army counter.