In case anyone wants to watch from abroad on a computer, it looks like it's possible to buy the day pass. You'll need a VPN and download the Now player before matchday. On the day of the match, go to Now TV and select the day sports pass. You then need to enter name, email and a UK postal code (I used my old UK address) and pay by card or paypal. I haven't actually paid or tested but it looks like it will work....but like I said, I'm not going to test until Thursday.