Last week, columnist @iamelicloutier expressed his excitement at the return of blockbuster fights to boxing. Now, that excitement has dwindled in the wake of some disappointing news regarding upcoming and potential fights.

Terence Crawford is 35 years old, Errol Spence Jr. is 32, and neither is getting younger. Both are seemingly still in their careers' prime, but how much longer? Crawford and Spence are widely considered...