"Amir's got so much speed and skill, but he's got flaws, too. He showed those flaws in the last couple of fights. He's very still, very square on, no head movement whatsoever."
"My elusiveness, my speed and my lateral movement can give anybody nightmares. Anybody who shares the ring with me doesn't enjoy it. People call me awkward. I say it's skill. I've got a good brain in there and I know what I'm doing.
"Amir's got so much speed and skill, but he's got flaws, too. He showed those flaws in the last couple of fights. He's very still, very square on, no head movement whatsoever.
"I was surprised how often [Marcos] Maidana caught him and he was so close to being stopped in that fight. He's very dangerous early on, but sometimes when a fight goes on, he can taper off a bit.
"I've been working with a conditioner for this fight and I'm in the best condition I've ever been in. I've trained for 12 hard rounds, so whatever comes my way on April 16, I'll be ready for it."
He will have to be. Khan, who won an Olympic silver medal aged 17 in 2004, has re-invented himself after his shocking 54-second knockout loss to Colombian Breidis Prescott nearly three years ago, and he is now hovering just below boxing's superstar bracket.
"I have to take my hat off to him," concedes McCloskey. "But he was looked after well and he was very well matched. How many people get knocked out and, within three fights, get a world title shot? He's a product of the business, to be fair about it.
"I do respect him as a fighter, but I don't think he's as good as they're making him out to be. He's not in the league of Manny Pacquiao or Floyd Mayweather. He's talking about moving from 140 up to 147. There are 147 fighters out there at the moment who would wipe the floor with him.
"Sometimes you can talk too much. You're better just staying focused on what's ahead of you. By talking about the other stuff, he's taking his eye off the ball with me."
By his own admission, McCloskey's career has been "very low-key," with a 10-round decision over former WBC lightweight champion Cesar Bazan in March 2008 making the only standout result on his record.
But McCloskey declares with a sense of destiny: "This is my time to announce my arrival on the world scene. I want to make my own history. People in America obviously don't know who I am, so they're probably expecting an easy fight for Khan. But they'll see what I'm all about."