Watch ESPN on RHEL 7

I am unable to watch espn3.com on my RHEL install.
I wanted to setup my grandfather with a new laptop running RHEL 7, but can't get watch ESPN to work on it.

Any suggestions?
I found 1 for fedora, but nothing specific to Red Hat? https://ask.fedoraproject.org/en/question/38678/drm-flash-videos/

If anyone has figured it out, would be great to know how to get working.

Thank you!