Keith has been plagued by injuries though beak.
I also hate when he refers to himself in the 3rd person....cut that silly bullshit out!! 
He has. And in his prime he wouldvs handled Fondura. His style would've been the perfect fit to catch Fondura the way Mendoza did.
Now, I don't think all his inactivity is due to injury, he's had 5 fights in 10 years and Im not sure all the injuries were legit or ploys to stay free for bigger paydays.
But either way, even at his best he would've relied on movement that his legs can't sustain at 37 years old, he hasn't retained his power, and he's had a lot of injuries- even if some of them were just excuses, if they were ALL bona fide injuries its even more of a reason to pick Fondura. Age, inactivity, injuries and loss of power all points to a long night for Keith.
I used to be a big fan of Thurman but I think his time has passed by and he spent his best years on the sidelines. Its frustrating to watch a guy with his skills waste his best years, whether due to injuries or mismanagement.
Come to thi k of it, he's like the levrone of boxing, a talented oddball, and like levrones comeback, this probably won't end well either.