Three years after their first meeting for IBF world title honors, Suganob's aggression helped to earn revenge against Sivenathi Nontshinga at the Bohol Wisdom School in Tagbilaran City, Bohol.

A trio of right hands at close-range crunched Nontshinga to the canvas and veteran referee Tony Weeks stopped the count with the former champion clearly unable to continue. The South African was given oxygen in the ring and attended to by medical staff after suffering a third stopage defeat against world-level competition in three years.

The stunning finish means Suganob (19-1, 8 KOs) is now mandatory challenger to IBF beltholder Thanongsak Simsri, who makes his latest title defense in two weeks' time against Mark Vicelles.

Two highly-rated junior flyweights headlined "Kumong Bol-Anon 26" and given the international officials involved, with IBF president Daryl Peoples in attendance, this felt big for Philippine boxing.

Not much of note happened in the first frame, though Suganob looked to tee off with furious flurries whenever Nontshinga (14-3, 11 KOs) had his back to the ropes. The former champion jabbed well while moving backwards, comfortable he could cope with the infrequent bursts of pressure, yet they would only intensify as time wore on.

Suganob was guilty of recklessness in spots with punch output, such was the eagerness to impress as the partisan Filipino crowd cheered and hollered his every advance. Nontshinga countered nicely and that pattern continued in the third, where Suganob's best work was sharply undone after overextending in the final seconds.

He dug downstairs, threw cuffing shots in the pocket and flurries aplenty but found himself grimacing awkwardly after stumbling backwards and falling to the canvas. Nontshinga timed him well, connected on a punch near his shoulder he didn't see coming, and a delayed reaction saw Weeks start counting.

That setback could've deterred him from pushing the pace but instead, there was more where that came from.

Nontshinga didn't do enough to maintain his distance in the meantime, though Suganob refused to let him rest and the reward came rather dramatically midway through the fifth. The visitor promised an evolutionary performance after a long layoff, yet the home hero has benefited from being more active and was a deserving winner.