At this point, a lot of it's a mental challenge for us that we have to overcome.

But it was a mental challenge, not at all a physical one.

Anyone who knows me will tell you that I like nothing better than a mental challenge or two.

He now had a mental challenge, and the scientist in him was functioning again.

But Jackson was not happy with the way his team responded to the mental challenge thrown down by the 76er effort.

The regular season is always a mental challenge, but this one, to me, was harder.

If the mental challenge disappears, he will probably do the same.

You could play games of mental challenge with them.

As it provides very little mental challenge, extended television watching should be avoided.

"We were focusing on individuals having to overcome some kind of physical or mental challenge," he said.