It is a challenge to perform for 50 straight minutes. It is an aerobic workout, but an enjoyable and exhausting challenge. We get our energy from the audience. It is great to go out there and see 6,000-7,000 people singing and dancing.

The biggest challenge is to make sure the car drivers realize the trucks can't stop like they can, make turns like they can,

Families are going to be a challenge.

In the moment of truth, he's going in on a challenge. Despite his physique, he plays with big size.

It was windy, dark, and there was fire and smoke, so that's a challenge for the pilot and the paramedic who's operating the hoist.

It's going to be a tough game for us, ... Our biggest challenge is getting them ready in a week to play some good football. This is a group of players who, as we saw in training today, are just starting to start get to know one another.