If you are wondering where you can watch the nexus cup, below is the link to the Youku channel where you can find the videos of the nexus cup matches.
http://i.youku.com/i/UMTU0MjYyMTk0OA==?spm=a2h0j.8191423.subscription_wrap.DD~A
I would highly recommend using VPN to connect through a Chinese server. Because without it, the videos seem to lag quite a lot.
If you want to watch the matches live, you can use the link in the over.gg match pages (http://cc.163.com/nexuscup), but usually the matches were held so early in the morning, so I had to look everywhere to find this Youku channel. And I thought maybe there are others like me who wanted to be able to watch the matches after they are completed.
Discord