Terence Crawford doesn’t need to face Canelo Alvarez again, his job in boxing is done.That is the view of renowned pundit Adam Smith, who believes that Crawford and Alvarez’s ring rivalry is best left in the past.Crawford and Canelo’s rematch would still be box office, but it is unlikely the former will reverse his decision to retireGettyThe American defeated Alvarez in their blockbuster clash last September, stepping up to 168lbs to snatch the undisputed titles from the Mexican champion.After the fight, Alvarez was injured, but insists to this day that he wants the chance to get his revenge against ‘Bud’.Crawford retired earlier this year, and has vowed not to climb back over the ropes, despite being targeted for the sequel by Saudi chief Turki Alalshikh.And Smith told talkSPORT.com he agrees with Crawford’s sentiment, suggesting he is simply too good anyway.“Terence Crawford was simply too good for Canelo Alvarez,” Smith explained.“He was jumping in weight, but his skill set with his movement and timing were too much for Canelo.“I think we saw a similar outcome to that for Canelo earlier in his career when he faced Floyd Mayweather.“Mayweather put in a similar performance to Crawford and was just too good.”When asked if Crawford should remain in retirement, Smith insisted as a legend of the sport there is nothing left for the Omaha native.“I just hope he stays retired now,” Smith continued.Crawford retired on top of his game with an undefeated record, and would only entertain a legacy-defining boutGetty“I don’t think he needs to fight again, he has achieved pretty much everything he set out to in the sport.“And if he stays retired, he will go down as a top ten fighter of all-time.”What next for Canelo with Crawford retired?With a sequel against Crawford unlikely, despite a lucrative $100million split payday being on the line, options are dwindling for Alvarez.The Mexican icon will first return in an attempt to wrench back one of his world titles against WBC champion Christian Mbilli on October 31.Victory could see him set up some big unification clashes if he wants to chase undisputed glory again.Watch Boxing on DAZN*If you click a link in this boxout, we will earn affiliate revenueSign up to DAZN to access the definitive subscription for boxing fans.Upgrade to DAZN Ultimate from just £24.99/month, guaranteeing access to 185+ fights annually, a minimum of 12 pay-per-views at no extra cost, as well as every Lega Serie A match and other elite football access.Alternatively, DAZN Standard is just £15.99/month, with the caveat you will have to pay for pay-per-view events.Click here to sign up.But at the age of 36, time is running out on his career, and he may need to search for the big paydays to round off his time in the sport.Alvarez has declared he has just a handful of fights left, with Smith having suggested retirement is imminent.And he hopes that his final bow can be in the Mexican sporting chapel of the Estadio Azteca, where he is already in discussions over a retirement fight.