It's all kicked off in here I see.
Not that scorecards matter, but at the time of watching I had Ward up by 1 round by the stoppage, I will rewatch the contest again though at some point because it felt like it was close while watching.
The stoppage was dreadful though, Kovalev was obviously still not 100% after he ate that right hand from Ward, however he wasn't hurt enough or taking enough punishment to stop the fight, but there is absolutely no question that the punches that made Kovalev keel over were clearly low blows, a good 2-3 of them in succession. I didn't notice it myself at the time but I read that Kovalev complained during other rounds that Ward had repeatedly caught him low.
Very poor stoppage IMO.