I watched film of Brock Lesnar's post fight interview, after he had just completed a 12-month comeback from a life-threatening intestinal problem. He had the strangest look on his face for a split second. I watched the interview about five times and tried to make the expression myself. The most conclusive thing I could come up with was that he was worried and a little bit afraid.
That expression acknowledged his concern and the doubts he had about the fight. Will it lead to a more humble Brock? It certainly seemed it did in his post-fight interview.
Will he be humble for longer than a few minutes? We'll see.