[Klaus]

Nice

https://opticallimits.com/sony/sony-fe-full-format/sigma-70-200mm-f-2-8-dg-dn-os-sports/

Agree, but less to the weight as it is too heavy for mirrorless in my opinion. Regarding focus ring, I think in principle it is a good idea to have the focus next to the front element where you have your left hand. You can adjust rapidly in case of an internal zoom when you lack a push pull option as with the Tamron. The issue seems to be the collision with the lens hood that should have been avoided. Anyway, who shoots with the hood reversed?

Well, I draw the lens from the "holster" at times, if it fits the situation - no time to attach the lens hood then.