Barclays Center, Brooklyn - Undefeated super welterweight Erickson Lubin (18-0, 13 KOs) knocked out Jorge Cota (23-2, 20 KOs) in a WBC 154-pound title eliminator, dropping the previously once-beaten Cota with a flush overhand left at 1:25 (TKO) of the fourth round.
Lubin now becomes the No. 2 challenger to WBC Welterweight World Championship Jermell Charlo, who is due a mandatory bout against No. 1 contender Charles Hatley.
The Orlando-native Lubin landed 47 percent of his power shots across four rounds of shutout boxing.
"I baited him with the jab. I knew he was going to come with the big shots early," Lubin said to reporter Jim Gray. "I put a few tricks on him, I landed that overhand and it was night-night. I put my hands down to bait him in, I did a squat and then it was night-night. I was ready to follow-up with a right but he was already out."
At just 21-years-old, Lubin now has an opportunity to become the youngest world champion in boxing today.
"That would mean a lot to me; that would mean a lot to Orlando, Florida," Lubin said. "This is my second time knocking someone out in front of Ray Leonard. He's one of my favorite fighters of all time. It's an honor to do this on CBS."
In the main event, Keith Thurman (28-0, 22 KOs) unified boxing's glamour division with a split-decision victory over Danny Garcia (33-1, 19 KOs) on Saturday, defending his WBA belt and picking up Garcia's WBC crown.
The event, which was produced by SHOWTIME Sports® for the CBS Television Network, marked the highest-attended boxing event in Barclays Center history with 16,533 fans witnessing just the 10th unification in division history.
The close affair, which was only the third time undefeated fighters unified the 147-pound division, was scored 116-112 Thurman, 115-113 Thurman and 115-113 Garcia.