I have never rated Rudiger. Think he is a bit of a tit to be honest, he's improved a little bit at Real Madrid but still have plenty of stupid moment, just they aren't as highlighted in la liga.
Agree that he’s a bit of a tit but I always considered him in the group of centre backs in the league who were below Van Dijk but better than the rest. He’s clumsy looking but largely does well and is great athletically.
Chelsea’s record with and without him in all competitions shows a bit of how important he was:
With Rudiger starting
Played: 55
Won: 33
Drawn: 11
Lost: 11
Goals for: 88
Goals against: 44
Points per game: 2
Win rate: 60%
Loss rate: 20%
Goals per game: 1.6
Goals against per game: 0.8
Without Rudiger starting
Played: 57
Won: 29
Drawn: 12
Lost: 16
Goals for: 111
Goals against: 76
Points per game: 1.73
Win rate: 50.9%
Loss rate: 28.1%
Goals per game: 1.9
Goals against per game: 1.3
He’s obviously not one of the best in the league ever, but then I’m picking him in the later rounds so didn’t expect that.