As the game is being broadcast nationally on NBA TV (as well as CSN Bay Area in Golden State and and Fox Sports Southwest in San Antonio), the legal options for a live stream are unfortunately somewhat limited. Here’s a rundown:
Watch Spurs-Warriors Live Stream Online
If you are in the Warriors market and have a cable subscription with access to CSN Bay Area, you can watch the game live online via CSN Live Extra by clicking on this link. You’ll need to provide your cable user name and password to watch the stream. You can click here for frequently asked questions about CSN Live Extra, which includes info on where you need to be located to be able to watch the live stream.
If you’re outside that area, the only other option to watch the game online is to watch it on demand via NBA League Pass, which you can sign up for here. You’ll be able to watch it after the completion of the game.