The judges again had the final say, but there wasn't any controversy this time.
A rubber match is inevitable.
Manny Pacquiao earned a unanimous decision over Timothy Bradley on Saturday night to reclaim the WBO welterweight belt.
The fight was scored 116-112, 116-112, 118-110 in favor of Pacquiao (56-5-2).
Bradley (31-1), meanwhile, took his first professional loss.
After the fight Bradley said he pulled his right calf in the first round but stated, "I have no excuses."
Bradley won the first fight two years ago with a controversial split decision that was greeted by gasps and boos at the MGM Grand. Bradley won 115-113 on two cards to end Pacquiao's 15-fight winning streak.
The 35-year-old Filipino had a 115-113 margin on the third scorecard but lost for the first time in four title defenses of the belt.
Saturday's fight appeared even through the first six rounds, but Pacquiao controlled the second half of the bout by being aggressive and keeping Bradley off-balance with a series of combinations.
Bradley, who normally focuses on keeping his distance and being precise with his punches, uncharacteristically looked for the knockout throughout the fight. He has 12 of them in his career.
Earlier on the undercard, Jessie Vargas (24-0) remained undefeated and captured the WBA junior welterweight belt from Khabib Allakhverdiev (19-1) via unanimous decision, 115-113, 115-113, 117-111.
Bryan Vasquez (33-1) retained his WBA world super featherweight title against Jose Felix Jr. (26-1) via unanimous decision 117-110, 114-113, 114-113 in the opening bout.