Roger Federer had his patience tested when John Isner had to change his kits in the locker room. He was allotted 120 seconds between sets but he sure took his time, leaving Federer clearly irked by it. But even all that, it didn't throw Federer off his game. He managed to keep his cool quite well.

1. He had to keep walking back and forth.

2. Play with his own balls for a bit.

3. Complain to the umpire about all this nonsense.

4. Give his dissatisfied look as he should.

5. Style his hair for the cameras.

6. Pull up his socks. Though there was nothing wrong there.

7. Stretch out a little bit to remain warm.

8. Bounce more balls.

9. Use body to bounce balls.

10. Stand and watch fans watch him. On TV.

11. Bounce balls faster.

12. His most annoyed look yet.

13. Warm up a little.

14. Stand like a boss.

15. Win the game because Isner made him wait.