Something about myself
I live in a small town, I am into badminton and plan to learn tennis in the new term. In 2006, I was introduced to tennis and I am crazy about Li Na.
[Very good. A subtle error - If something happened once, you would say in 2006. However, if you have been doing it all the time from that point, you would use 'since'.
I was introduced to tennis in 2006.
I have been a fan of Li Na since 2006.
BTW - I'm a fan of hers, too]