It was a bold move for a rookie manager, one that could have backfired if the other hitters had not met the unspoken challenge.

Was he mistaking the excitement, the unspoken challenge she tempted him with?

The two men eyed each other, the unspoken challenge hanging in the air.

I knew it when he backed away from my unspoken challenge not five minutes ago.

The tone seemed The Shadow's answer to an unspoken challenge.

Quigg said it is also an "unspoken challenge" to other scientists to consider the "cultural and spiritual value of science".

It was a glance, not of command, but of invitation - an unspoken challenge.

An unspoken challenge charged the air between them.

She watched as the two men sized each other up, their eyes narrowed with some unspoken challenge.

While Blade lived he was a challenge, as yet unspoken, to Mokanna's authority.