Joseph Parker has spent the past seven weeks practicing keeping his left hand up high in preparation for Thursday's fight against powerful veteran right-hander Kali Meehan.
Bunkered down in his Las Vegas camp with trainer Kevin Barry, Parker regularly sparred with 1.91m training partner Izu Ugonoh, in the hope of learning how to avoid and negate Meehan's 13cm reach advantage.
"This is a big challenge for me because of the experience that Kali brings, his height, his reach, and the training camp has been awesome," said Parker.
"With (Ugonoh) his height and reach, he helped me to practice how to avoid getting hit by someone with long arms, and trying to get in there and land the punches I need to land to win the fight.
"Kevin was getting him to throw a lot of punches similar to Kali, so it's definitely helped me to keep my left hand up. Hopefully come fight night it doesn't drop again like in the past and I can protect myself."