Welterweight contender Errol Spence Jr. remained unbeaten with a fifth-round stoppage of former 140-pound beltholder Chris Algieri on Saturday in Brooklyn.

Spence (20-0, 17 knockouts), a 26-year-old 2012 Olympian from DeSoto, Texas, dropped Algieri in Round 4 and twice in Round 5 with huge left crosses. After an even first round, Spence softened up the 32-year-old New Yorker with hard body shots in Rounds 2 and 3. The up-and-comer methodically walked down Algieri (21-3, 8 KOs) and punished him along the ropes.

Algieri had been down in previous fights, including his WBO title victory over Ruslan Provodnikov and one-sided loss to Manny Pacquiao (who put him down six times), but he’d never been man-handled the way Spence, THE RING’s No. 7-rated welterweight, dealt with him during their NBC-televised bout at Barclays Center.

Spence is the No. 1 contender for the IBF title held by undefeated Englishman Kell Brook.

A full ringside report by Mitch Abramson will be posted soon.