Top tweets of 2013

1. Diminishing hair follicles.

2. Jealous of Sloane Stephens?

3. Mistaken identity?

4. Countrymen having a little fun.

5. What a guy.

6. Thanks for the compliment, I think.

7. Something to strive for.

8. Take that!

9. Controversial decision allowing Angelique Kerber to play in Linz.

10. Translation: This evening, meal in the room to rest after a long day.