He won't rest until he's tested his mettle against Rome.

Some students have already tested their mettle as volunteers, while others are new to the field.

If they wanted to test his mettle, he would not be found lacking.

The young men must be tried to test their mettle.

A great hour is upon us, a foe to test our mettle.

This is a place where people come to change, to reflect, to test their mettle.

Computer scientists are using problems on the list to test their mettle.

Perhaps just a dry run, a rehearsal to test her mettle under pressure.

They all come here to test their mettle, as you have.

You really have to test your mettle to get to the next level.