Players Championship

I can see hitting it right handed being difficult,
but the way the club impacted the ball. I think
I could hit it right handed with the back of the clubface
but not like this...

He struck the ball with the proper side of the clubface,
by holding the clubface in this awkard position. Seems
like it would twist as one swung. How do you grip it hard
enough and keep the clubface position maintained?

club.JPG