"But after a while his attitude and mind were not on boxing."

He wrote frequently for the popular press in London on boxing and music.

Trainers who saw him fight thought he could make a real mark on boxing.

With the restrictions on boxing there aren't any healthy blood sports left in America.

To return to peak form, he has concentrated on boxing.

I would still push the button on boxing, but nobody's going to give me that power.

His friends say Johnson's life centered on boxing and staying in shape.

He eventually gave up football commitments to concentrate on boxing.

After that, he kept on boxing, but was only able to win some and lose some for the rest of his career.

I've been able to concentrate 100 percent on boxing.