Terence Crawford announced his immediate retirement, saying he was walking away with nothing else to prove after earlier social media posts and reports had signaled his decision.The Omaha-born fighter finished his career unbeaten at 42–0 with 31 knockouts and 18 major world titles across five weight divisions, capping his run with a unanimous decision over Saúl "Canelo" Álvarez in September that made him undisputed at super middleweight.Crawford said he is stepping away not because he is done fighting but because he has "won a different kind of battle," thanked family and fans, left open a remote possibility of return, and earlier this month was stripped of the WBC super middleweight title after failing to pay sanctioning fees.