Not surprising at all. This Sasakul should have retired long time ago and this knockout lose emphasizes the need of hanging his gloves for good.
This is about what I expect. Sasakul still a decent, but Mijares did what he was supposed to by destroying the faded champion. The cold war continues with Montiel.
His ability to keep distance, work off the jab, and then use head movement to make shots miss when his opponent tries to bridge the gap is brilliant. It's going to take a special fighter to beat him.