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But our guys came back and now they understand mental toughness.

But many argue that mental toughness is just as important.

It takes a very strong person to say: actually, I want to develop my mental toughness.

The mental toughness was always there; the rest came later.

There is a mental toughness in that and I don't think it will go away next year.

"We just need to have the mental toughness and focus."

At the same time, we have to develop a mental toughness that the team over the last five years really had.

One of the things we have that others don't is mental toughness.

"It takes a lot of mental toughness to come back and that's what we're going to work on now," he said.

He was also known for his physical and mental toughness.