Henry said: "I always always say that I've seen strikers not scoring but playing really well for the team away from home and doing exactly what you need to for your team away from home, or even at home.
"But more often than not you judge a striker for his goals - fair enough, we already know that.
"People can get better and I believe in that. But there is one thing that he doesn't do ever so well, and he's always shoulder to shoulder with the defender, so you can go like this, and get your foot around.
"But if you are like this (square on, hand on defender's shoulder) there is no way you can get that ball now. I've created a distance, you can't get the ball. Even at three-quarters you can protect the ball.
"Afterwards it's all about your quality, but you can't let the defender get their leg around you, or get an arm around you, you have to grab it first then dictate."