WBC-NABF title defense against Garrett Wilson on 20 September 2014. He won the fight by unanimous decision, with scores of 99-90, 96-93 and 98-91. Mchunu returned to South Africa for his next bout, as he was booked to face Ilunga Makabu in a twelve-round WBC cruiserweight title eliminator bout on 16 May 2015 at the Convention Centre in KwaZulu-Natal, South Africa. Makabu won the fight by an eleventh-round knockout. Mchunu was leading slightly on the scorecards at the time of the stoppage, with scores of 96-95, 95-95 and 97-94. After suffering the second professional loss of his career, Mchunu was scheduled to face Boniface Kabore for the vacant WBA interim Pan African cruiserweight title on 20 May 2016 at the Convention Centre in KwaZulu-Natal, South Africa. Mchunu vs. Usyk Mchunu challenged the reigning WBO cruiserweight champion Oleksandr Usyk on the Bernard Hopkins vs. Joe Smith Jr. undercard on 17 December 2016. The bout took place at The Forum in Inglewood, California. The fight started out slow, causing the fans in attendance to boo with displeasure. The pace picked up after the first couple of rounds when Usyk began breaking down Mchunu, before knocking him out in the ninth round. Mchunu was outlanded 163 to 76 in total punches. Mixed fortunes Following the third loss of his professional career, Mchunu was scheduled to face Johnny Muller for the vacant African and South African cruiserweight titles on 10 June 2017. He thoroughly dominated Muller en-route to a unanimous decision victory, with all three judges awarding Mchunu a 120-108 scorecard. After he bounced back from his loss to Usyk, Mchunu was booked to challenge the WBC International and Continental Americas cruiserweight champion Constantin Bejenaru on 25 November 2017. Mchunu lost the fight by unanimous decision, with scores of 98-91, 97-92 and 97-92. Bejenaru dropped Mchunu with a left cross in the seventh round, but was unable to finish him. Seven months later, Mchunu was booked to face Ričards Bolotņiks on 23 June 2018, in his return to South Africa, after losing both of his previous United States bouts. He won the fight by sixth-round technical knockout. Mchunu was next scheduled to fight Thomas Oosthuizen for the vacant African cruiserweight title on 1 November 2018. Despite coming into the fight as a favorite, Mchunu ended up losing the fight by majority decision. The two fought an immediate rematch on 8 December 2018, with his