Li Na, Jelena Jankovic, Eugenie Bouchard, Flavia Pennetta and Klara Zakopalova all celebrated birthdays this week. Read some of the messages from their fans.
WTA Staff

This has been a big week for birthdays for WTA stars, with two-time Grand Slam champion Li Na, former World No.1 Jelena Jankovic, rising Canadian star Eugenie Bouchard, former doubles World No.1 Flavia Pennetta and former Top 20 player Klara Zakopalova among those celebrating. Happy birthday messages have been pouring in to from fans all week. Here is a collection of them:

Happy Birthday, Li Na, Jelena Jankovic, Eugenie Bouchard, Flavia Pennetta, Klara Zakopalova! I enjoy watching your matches and wish you all the best on and off the tennis courts!
- Danny Yang

Happy Happy Birthday, Li Na! You are totally AWESOME. Wishing you all the best for the rest of the season. Happy Happy Birthday, Eugenie! I hope you had a good day to celebrate your 20th. Good luck this week in Acapulco. Jelena Jankovic - I wish you a GREAT birthday. Love your voice. Keep playing well and working hard. HAPPY BIRTHDAY, LADIES
- Lee, South Africa

Li Na, I have followed you since 2004. I didn't always get to see you play, but I kept track on all the news about you. It has been great to see you mature as a player and a person and see your tennis mature also. Thanks for all the memories of the past 10 years and I look forward to future memories. HAPPY BIRTHDAY!!

Happy Birthday, JJ. I wish you all the best. A lot of health, luck, love and wealth. Good matches and even more wins. Stay positive and smile on and off the court as always.
- Stefan

Hi, Li Na,
Hope your birthday is even happier than the year before. Well, of course with your new Grand Slam title just before your birthday. I'm from Thailand and one am one of your many big fans around the world. I'm waiting to see you achieve your goal this year by becoming the new World No.1 I wish you all the best and your family too. Best of luck!
- Manop

Happy Birthday to my two favorite players - Jelena Jankovic and Flavia Pennetta!! Hope you both have a fantastic birthday. Best wishes.
- Damon, Great Britain

Happy Birthday, Jelena! I wish you another successful year and all the best!!!
- Viktor

Happy Birthday, Flavia. May God bless you and keep you healthy for the year.
- Tracy

Happy Birthday, Eugenie. You're 20!'re 19!! ...18, 17 or 16 by spring? ...aiming for No. 1? Have a good year!
- John, Australia

JJ, Happy Birthday!! Wish you a lot of good matches in 2014, a lot of good health and of course, at least one Grand Slam under your belt!!
- Nemanja

To Flavia Pennetta: Best birthday wishes and hoping for your best ever year!
- Keith and Mary Thompson

Greetings from Wales. Happy Birthday to by far my favorite WTA star, Jelena Jankovic. I've loved watching you play since 2008 when I was 10 years old. Even though I'm not native to Serbia, I still support you as much as they do. You inspired me to start taking tennis as a hobby and even my best shot is the backhand down the line, coincidentally. I know you've got what it takes to do well this season, as seen in Brisbane and Doha. Just keep your head down and focus on each game at a time and I'm sure you'll do it.
- Ashley, Wales

Happy Birthday, Li Na. Wishing you many happy returns as well as success both on and off the court.
- Nasir