Disappointing loss, but it happens.
Kovalev had a good run. At least it's not like he lost to some bum, as Alvarez is considered a good fighter. And another bright side is that at least Kovalev didn't lose this time to a Black fighter, as the idea of Hispanics being promoted as athletically superior is laughable. Unless Alvarez is Black-identifying? I don't know.
Personally, I hope Kovalev steps aside and takes care of his health. He's still young, and presumably not hurting for money, and he's had a good career, holding multiple titles. All in all, I'd say this latest knockout is his only real, undisputed loss, as I don't count either of his "defeats" to Ward as legit. Especially the first fight, come on bro LOL.
Then again, it's up to Kovalev when to say he's had enough, and who knows, maybe he can still do something in this division. I think the first loss to Ward messed him up psychologically though, because prior to that he was well nigh unbeatable, and he beat Ward's ass and STILL lost? That's got to mess with your head. History, I think will be kinder to Kovalev than Ward. Ward always has an asterisk next to his "0," whereas Kovalev at least has the reputation of fighting who he's supposed to fight, fighting regularly, and not running like a sissy.