NEWARK – Joey Spencer picked apart Limberth Ponce mostly with once punch at a time for four-plus rounds Saturday night.

Finally, Spencer let his hands go in combination during the fifth round and got the knockout he sought in an eight-round middleweight match FOX televised from Prudential Center.

Referee Eric Dali immediately stopped the action once Ponce went down, with his right leg bent in a vulnerable position. The official time of the stoppage was 1:24 of the fifth round.

The 21-year-old Spencer, of Linden, Michigan, improved to 14-0 and recorded his 10th knockout. The 30-year-old Ponce (18-5, 11 KOs), of Rock Island, Illinois, lost by knockout for the first time in his nine-year, 23-fight career.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.