Yeah, I see that the pages containing the card tags are crawled with an agent of “Twitterbot*” BUT I also see that the player link (for example) in said tags are hit with a different agent. Unfortunately I do not know what this other agent or referer domain is - I want to know too!
:-/
PS. Oddly enough the image links in the tags do indeed sem to get hit with “Twitterbot*” agent…