Someone reported in another thread that one can buy the sports extra package for $1 along with the game pass. That would include the ACCN.
Here's where it's a big tricky IMO- to get ACCNX you have to use your Sling account to sign in to ESPN, which uses
your sling/comcast/directv account info to look up what channels you subscribe to and then lets you stream them. So if you have an active ACCN sub, you would get the ACCN+ stream.
That's in theory. I have not heard of anyone actually getting an ACCNX stream using this method (this would be the second weekend it's even possible).
So if you try it, please report back! (I can think of a few reasons it wouldn't work, such as the database only updating every 24 hours and the system not recognizing a day pass).
This is almost certainly the only football game that will be in ACCNX as streaming only this year, but getting the regular ACCN for a day via Sling is also valuable for out of market fans that don't subscribe to ACCN.