Are There Any Fighters That Had Elite Skills But...?

In Tyson's case, it was more about his issues outside the ring.

 

SRR proved he was the better boxer.
If SRR wouldn't have been on tour, he'd have won from the get go.

 

It could be argued that Foreman 1.0 had this syndrome.

Edwin Valero certainly.

 

Chan Hee Park should be mentioned. Very talented Flyweight who managed to best Miguel Canto but just couldn't keep focus or consistent.

 

I wouldn't describe Loma's mentality as fragile. He was more so arrogant and lacking in awareness. He believed he could beat Teo injured because he had dealt with fighting through injury before against Linares iirc. He thought he could beat the best guy in his division who was young, athletic, and a big puncher while badly injured, which is moronic. Against Haney, he would think that he had banked rounds with his flurries and then shut off for the rest of the round and let himself get outworked. Lomachenko was hugely cocky and not especially clever in the ring, but he wasn't mentally fragile.

 

And really didn't react well to Shoji Oguma putting up a better, nastier fight than expected. In their first fight he seemed unprepared to have to dig deep to beat Oguma and eventually gave up. In their third fight he had cut Oguma's face up pretty badly, but over the second half he appeared to panic whenever the bloody Oguma would start to hit him with his trademark body shots.

He was a very fast fighter with a well rounded offensive repertoire, defensively responsible and had enough sharpness/power to drop Canto, Espadas, and Oguma, and he actually stopped Espadas. Probably should have been the next great flyweight after Canto.

 

I've posted before so I'll just copy and paste

Kronk fighter Superbad Bernard Mays 26-1-1 15 KOs. Stories I've read is he used to always get the better of Tommy Hearns in sparing, Steward said he was the MOST TALENTED Kronk boxer of them all, his amateur record was 200ish wins, 2 losses. But then found beer and got hooked on it. His last fight was a loss but his pancreas was messed up because of all the drinking. Died of alcoholism at 33

 

Victor Ortiz

 

Audley Harrison, Davey Price, BJS, maybe Khan...?