clench

They are frail women screaming, “Jab!” and shaky men screaming, “Hook!” and everyone counting with clenched teeth through 75 minutes that stretch the shrinking muscles and test the weary optimism.

"He was clenching his fists and his behaviour completely changed," she said.

A clenched left hand had its thumb resting on top of the grip.

Breathtaking iron play brought birdies on 15 and 17 before he finally closed out Quail Hollow's toughest hole, the 18th, by sinking his 10-foot birdie putt and clenching his fist in satisfaction.

She grew in confidence as Kudermetova faltered, clenching her fists and yelling in celebration after a thumping forehand winner secured victory.