Johannesburg - Francois Botha’s slide continued when Carlos Takam stopped him in the 11th round in France on Saturday night.
The South African, a former IBF and WBU heavyweight champion, has now lost three and drawn one of his last five fights.
His professional record dropped to 48-7-30, with 1 no-contest and 28 knockouts, when Takam, a 31-year-old from Cameroon, beat him in Seine-Saint-Denis.
They were fighting for the WBO heavyweight title. Takam improved to 25-1, with 21 knockouts as the 43-year-old Botha failed to last the pace.
Botha, known as the White Buffalo, was knocked out in the 12th round by Michael Grant in Johannesburg last November.
On the undercard as the tournament in France, Ali Oubaali improved to 25-3; 19 when he beat Bastien Laforge (14-3-1; 3) to win the vacant WBC Mediterranean light-welterweight title.
In Baja, California, Hugo Ruiz retained his WBA interim bantamweight title when he knocked out previously undefeated Yonfrez Parejo in the eighth round.
The fight ended 1 minute 12 seconds into the round. Ruiz improved to 30-1; 27 and Parejo dropped to 11-1-1, with 4 knockouts.
On the same card, Alejandro Sanabria moved to 32-1-1; 24 and retained the WBC silver lightweight belt by beating Balwed Bangoyan (17-6; 7) over ten rounds in a non-title bout.
NON-STOP ACTION IN MEXICO
Mexican fans had another weekend of non-stop action.
In Merida, middleweight Rogelio Medina improved his record to 27-2; 21 when he knocked out Jose Pinzon (21-3; 12) after only two minutes and 50 seconds of the first round.
Junior welterweight Silverio Ortiz improved his rather unimpressive record to 24-13; 11 when he beat previously unbeaten Mahonry Montes (26-1-1; 20) over ten rounds.
Miguel Berchelet, still unbeaten at 13-0; 11, stopped Alberto Chuc (14-20; 11) in the first round of another junior lightweight bout.
In Cancun, Sergio Thompson caused an upset when he beat former two-division champion Jorge Linares.
Thompson, who improved to 21-2; 19, stopped Linares (31-3; 20) in the second round of a WBC lightweight title fight eliminator.
The fight was stopped 2 minutes 27 into the round when Linares, who was cut over the left eye, went down from a barrage of punches.
Super-middleweight Marco Antonio Periban (16-0; 11) stopped Gerardo Diaz (12-2-1; 10) in the second round and junior lightweight Francisco Vargas (9-0-1; 6) stopped Carlos Perez (12-3; 9) in the third.
In San Antonio, former middleweight champion Kelly Pavlik (38-2; 33) showed he is still able to stand up to useful opponents when he stopped Aaron Jaco (15-3; 5) in the second round.
Melbourne: Samoan light-heavyweight Togasilimai Letoa (12-9-1; 7) stopped Manny Vlamis (11-3; 8) at 2:16 of the third round.
Kiel, Germany: Former IBF middleweight champion Arthur Abraham improved his record to 34-3; 27 when he beat Piotr Wilczewski (30-3; 10) on points – 118-109 on two cards and 119-108.
Cologne, Germany: Manuel Charr, the WBC International heavyweight champion, remained undefeated and improved to 21-0; 11 in retaining his title against Taras Bidenko (28-5). The scores were 116-111 on each of the cards.
Panama City: Roberto Vasquez, a former WBA junior flyweight champion beat Mario Briones on points over eleven rounds to improve to 30-5; 21 and win the vacant WBA Fedelatin super-bantamweight title.
Briones dropped to 21-2-1; 15. The scores were 105.5-104.5, 106.5-105.5 and 107-104.5.
Mashantucket, Philadelphia: Hank Lundy (22-1-1; 11) retained his NABF lightweight title when he beat Dannie Williams (21-2; 17) over ten rounds: 97-92 on two cards and 98-91.
Ascot, Australia: Kevin Johnson (26-1-1; 12) stopped Alex Leapai (25-4-3; 20) in the ninth round of a heavyweight bout.
Colon, Panama: Nicholas Walters (20-0; 16) beat Mexican Hector Javier Marquez (30-23; 21) on points in a featherweight bout.
On the same bill, former champion Ricardo Cordoba moved to 39-3-2; 25 and won the WBC Latino featherweight title when he stopped Eduardo Garcia (21-8; 9) in the fifth round.
Blackpool, England: Brian Rose (19-1-1; 5) retained his British light-middleweight title when he beat Max Maxwell (15-11-3, 3) over 12 rounds. The scores were 119-110 on two cards and 119-111.