I know they fought a bit in the Death row convicts arc but that seems kind of throw away at best, Muhamad alai Jr beat them both but it also felt like they wern't trying or they were trying to hype up Jr for his bout against baki to show he was actually strong.

I've never read the Manga but from what I've seen these two are always around but never actually engaged or showing off their full strengths seriously?

I know a lot of people are saying Doppo has dropped in strength since his battle with yujiro but could it just be he hasn't actually put forth any real effort because he hasn't had an adequate challenge? The dorian fight even though hypnotized he was still able to predict what his opponent would do without actually being able to see it and dominate him. The fact him and Yujiro are hanging out seems to imply that Yujiro atleast acknowledges doppo's strength.

As far as Goki goes he was one of the few people IIRC other than Gaia who didn't get clowned on by any of the convicts tricks. he showed that Oliva the 2nd strongest man in the world could be man handled by his techniques, Which is pretty impressive TBH.

I'm curious if they're actually weak or have they just not been showing their true potential. it seems like Yujiro and Doppo both were planning on taking on pickle before baki beat them to it then they both kind of lost interest.