Yes, Keith Thurman is 33 years old but I doubt that he can still dance well in the ring considering that he was inactive for almost 3 years but we'll see if he still got what it takes to redeem his name or is it time to hang up his gloves as he's nowhere to go. Barrios on the other hand, had professional fights every year so I guess it's quite safe to say that Thurman will just be a stepping stone to a 26 years old Barrios.
There's only one way to find out, we will know that soon as they will fight. I think he can still dance but maybe there's an effect on his inactivity but he is still a decent fighter, and there's a reason why he is the favorite to win this fight.
33 years old is still a good age for boxers it is actually a ripe age, the 3 years of inactivity will have an impact, he needs a good conditioning coach and tough sparring partners to get into great shape like when he is active three years ago, Thurman is good at picking a comeback opponent, he chooses a fighter who just got knocked out and easily intimidated Thurman knows his weakness because it was very evident in the Gervonta fight.