Go to the iTunes App Store (iOS) or Google Play Store (Android) and type in Sportsnet.  The app is free to download and allows you to start watching Sportsnet instantly.

Sportsnet App\n\n Your all-in-one mobile sports companion, delivering personalized news, scores, live updates, and instant highlights. Stream the live games you want anytime, anywhere with Sportsnet+. Download for free today!