Previous Post I don't remember all the details, but I think Wolverine tried to get in some shots, before Sentry restrained him by actually holding his blades in his bare hands. Then knocking him out cold with one punch.

...preventing any such cuts.

I haven't seen the Gladiator issue, nor do I know *when* it happened. If it was early in Wolvie's career, then remember that he had issues cutting the Hulk in his first appearance too.

The times, they have changed however. There's little that Wolverine can't cut (perhaps, save Ultron and Cap's shield).

Whether he can cut Superman depends upon the writers ultimately. I'm sure that there's some that say he couldn't due to a bio-field...which is plausible.

And there's some that would reason that Adamantium, being more dense than Kryptonian flesh, should be able to pierce/cut/gouge/impale Superman. That too is plausible.

Regardless...for Superman to be so stupid as to stand there and find out makes little sense. I'd imagine his response would be identical to Sentry's and simply take him out before he gets a chance to draw blood.