As a liverpool fan, pretty much everyone in Klopps era should have been a flop, but Klopp has an excellent scouting team behind him and his coaching skills are second to none. Salah was a Chelsea reject, and wasn’t setting the world alight at Roma, Mane was a decent player at Southampton but nowhere near what he became at Liverpool, wijnaldum was relegated with Newcastle, Robbo was a cheap buy at the time and nobody even knew who he was, even Alisson who was good but we trounced Roma in Europe and scored like 5 past him, I would even go as far as to say most people including myself thought we got robbed for Van dijk. So Klopps buys have been exceptional, and he did the same at Dortmund aswell, Gotze, Aubameyang, lewandowski, hummels, and a whole bunch more.
Probably not the most critical game ever. But Suarez vs Norwich where he bagged 4 unreal goals. The guy was literally on fire, and it was like he was playing against amateurs. It was genuinely the best performance I’ve ever seen.