She also acknowledged some “privacy concerns” regarding player-tracking data collected through wearable devices or the league’s Second Spectrum optical camera system. “It’s something that is used so that [players] can hone in on their skills, recognize when they are exhausted and when they can do things better,” Tremaglio said. But there are still some privacy concerns. We have to look at what that will mean going forward. It is certainly something that we are exploring.”