Besides Thanos and Darkseid, off the top of your head, who can knock Superman out?

[R=G]

Easy

 

[boriquaking]

Goku.

 

[Bryan Danielson]

Rocks Black Adam

 

[ORDER_66]

World war hulk
Thor full odin-force
Blue Marvel
MS.marvel
Sentry
Dr strange unleashed
Odin All father
the celestials
Galactus?!?

 

[Tunez]

Goku.

 

[Luken]

A seasoned green lantern like Sinestro

 

[BXKingPin82]

UnderDog

 

[Devilinurear]

Easy

Knock out?
Matello
Captain marvel
Wonder woman
Dr fate

 

[CarbonBraddock]

Popeye

 

[Json]

Any magic dude

Mongol

 

[Wargames]

Batman’s done it a few times

 

[twan83]

 

[MenacingMonk]

You're gonna disrespect Doomsday?

 

[Mr. Negative]

theres a reason DC doesn't have a bunch of telepaths.

 

[Stop_It_5]