Results: Jack TKOs Cleverly; Gervonta Davis beats Fonseca

Francisco Fonseca - Gervonta "Tank" Davis defeated unbeaten challenger Francisco Fonseca via a controversial eighth-round knockout 39 seconds into the round.

Gervonta “Tank” Davis defeated unbeaten challenger Francisco Fonseca via a controversial eighth-round knockout 39 seconds into the round.

The 22-year-old Davis (19-0, 18 KOs) landed a series of clean blows before an apparent shot to the back of the head sent Fonseca down. Referee Russell Mora gave the 10-count allowing Davis to earn his 18th stoppage win in 19 professional fights. The fight was originally scheduled to be Davis’ second defense of his IBF Junior Lightweight World Championship, but Davis failed to make weight on Friday, coming two pounds over the 130-pound limit that Fonseca (19-1-1, 13 KOs) weighed-in at.

Read moreResults: Jack TKOs Cleverly; Gervonta Davis beats Fonseca

Jack vs Cleverly, Davis, Tabiti-Cunningham quotes for Sat. on Showtime PPV

Francisco Fonseca - Fighters competing on the Mayweather vs. McGregor undercard spoke to media and went face-to-face Thursday, one day before they weigh-in ahead of their Saturday, Aug. 26 showdowns at T-Mobile Arena in Las Vegas.

Fighters competing on the Mayweather vs. McGregor undercard spoke to media and went face-to-face Thursday, one day before they weigh-in ahead of their Saturday, Aug. 26 showdowns at T-Mobile Arena in Las Vegas.

The four-fight SHOWTIME PPV event, beginning live at 9 p.m. ET/6 p.m. PT, will feature undefeated rising star Gervonta “Tank” Davis making the second defense of his 130-pound title against undefeated challenger Francisco Fonseca plus light heavyweight champion Nathan Cleverly defending his belt against former super middleweight champion Badou Jack. The telecast begins with unbeaten Andrew Tabiti and former world champion Steve Cunningham meeting in a 10-round battle.

Read moreJack vs Cleverly, Davis, Tabiti-Cunningham quotes for Sat. on Showtime PPV