1.   But, after Jeter grimaced a few times and flexed his arm a few times, he stayed in the game.

2.   He flexes his arms.

3.   His face is serene and alert, but his shoulders are slightly hunched, and one bare arm is flexed.

4.   One time, I saw him in his room and he was flexing his arm.

5.   Patients develop goose bumps and raise and flex their arms, even though they have no measurable blood flow to the brain.

6.   Williams hit three aces and a service win to win the final game of the opening set, then walked off the court flexing her arm like a bodybuilder.