So I was thinking that certainly while undercover Artemis is going to have to come face to face with Sportsmaster. Then I thought maybe she'll have to protect Aqualad from him and/or Cheshire and then they'll recognize Artemis by her moves and fighting style. I definitely think there's no way Sportsmaster wouldn't recognize her in a fight.
P.S. This is unrelated but I'd love to see a one on one fight between Batman and Sportsmaster. But since there is no chance of this I'd settle for Nightwing vs. Sportsmaster.