I get hung up when I use a series of phrases amid a sentence and then carry on with the sentence afterwards. Basically, I'm not sure if I CAN carry on with the sentence.
To illustrate: "Napoles was the Floyd Mayweather of his era, a boxing great, a welterweight sensation, a 'trade' sensation, who lived in Mexico City...
Is it right to carry on with "who lived in Mexico City..."?
Technically, there's nothing to stop you from carrying on the sentence like that. Personally, I think it would sound better if you started a new sentence, especially since being born in Mexico City doesn't have any direct connection with the rest.