Parker is growing in confidence right now as the Kiwi lands more punches to the body of Joshua.
Joshua continued to use his six-inch reach advantage, but Parker started to push inside. The biggest thing for me is the challenge of fighting someone like Joshua.
The Principality Stadium in Cardiff will on Saturday night, March 31, will be the center of attraction as it is the venue where British boxer Anthony Joshua will face Joseph Parker.
Parker has trimmed down too, weighing in at a svelte 107kg, 5kg lighter than in his last bout with Britain's Hughie Fury, cousin of the notorious "Gypsy King" Tyson Fury, whose relinquished WBO heavyweight belt Parker now holds. Joseph Parker is my main focus.
It wasn't without controversy.
It was never in doubt, with two judges awarding it to Joshua 118-110 and the other making it 119-109. "Parker is a very strong, durable fighter who can be tricky for Joshua, so he might take him to the late rounds to take him out".
"I think it's huge", he said. We just stated the truth about him.
"Forget the hype, Joseph Parker is a world champion". It's hard to see Deontay Wilder, the WBC champion, taking the IBF, WBA and now WBO titles from him.
"The first few rounds could go either way. I don't know if it's going to end in a knockout but I definitely see AJ winning that one".
Joshua vs Parker Time: When is the Joshua vs Parker fight?
"There are no excuses from my side", Parker, 26, told BBC Sport.
By the final two rounds, both men were noticeably exhausted, but Joshua landed the more definitive punches to see the fight out. Considering the stakes at hand, the perfection of both fighters, and the potential for fireworks between two guys who have promised action, this is undoubtedly a must-watch fight. More people had turned out for what was essentially a formality than saw Parker defeat Carlos Takam at the Vodafone Events Centre in Manukau, and they weren't there to piss around. Joshua started to look a bit sloppy and was being screamed at to keep his shape.
Parker looks on the promoter nearly as family nowadays. It was a close round but Parker may have edged it.
Joshua appeared to hurt his younger foe at the beginning of the sixth, prompting the beginnings of a small brawl which the referee struggled to separate. Parker is going fast, but his punches are not landing.
The crowd had been warmed up by yet more banter between rival promoters Eddie Hearn and David Higgins, the New Zealander playing his part of cartoon-like villain to perfection and the boos rang out loud and long. Strangely the referee didn't call a time out to fix it. "It's not time to sit back and enjoy the ride".
Both men were pleased with their weight and condition.
There was blood in the 10th, a cut near Parker's left eye, and more controversy. His only hope is if Joshua makes a mistake and leaves himself open for a one-punch knockout, but that's unlikely. Parker clipped Joshua with a jab and a straight right hand right around the one-minute mark of the fifth round.