Though it probably won’t make it onto any year-end lists, UFC London ended up being a fun, well-rounded card. The wild scrambles between Arnold Allen and Makwan Amirkhani, the stunning dynamism of Marc Diakiese, the triumph of Jimi Manuwa at the top of the card, and the emotional retirement of Brad Pickett to lend everything else a little more meaning. It was fun, is what I’m saying.

And there, right in the midst of it, was Gunnar Nelson. Stoic and unreadable, the Icelandic teammate of Conor McGregor has given us fits for years. Since his UFC debut in 2012, Gunni has repeatedly demonstrated incredible dynamism atop a solid bedrock of world-class grappling. In all of that time, however, he has changed very little, and still prides himself on figuring opponents out in the cage, without the benefit of a gameplan. We take Nelson’s London win as an opportunity to remember just how good he is, but also to delve into our relationship to the fighter. What is his ceiling, and why does he so often frustrate our expectations?