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FYI there is this phone app called go90 that is playing the game for free (no subscription required or anything). They play some La Liga games as well.
If you're in the US and have a smartphone, there is an app called go90 that has free official live streams from BeIn Sports of La Liga, Serie A, and Ligue 1 matches. It's provided data-free (i.e. doesn't count against your data usage) by Verizon, and you don't have to be a VZ subscriber.
What about go90?
https://play.google.com/store/apps/details?id=com.verizonmedia.go90.enterprise
I've used it for MLS in the past and its always been HD. Never tried it for Serie A but it's listed in the app description.
oh good news, you can also get it via go90 app. Sky Woodward confirmed. I watched something (mosconi cup?) via that app before and it was good. https://play.google.com/store/apps/details?id=com.verizonmedia.go90.enterprise&hl=en_US
BeIN soccer games often show up on go90, a streaming video app run by Verizon. You don't have to be a Verizon customer to use it and the quality seems pretty decent overall. I used it yesterday to watch the Liverpool EFL cup game and was able to watch on my TV with my Chromecast. Hopefully most AFCON games make it on there.