For the fans who live on "NBA Twitter," you may already know who Anna Horford is. Not only is she Al's sister, but she's arguably his biggest fan. Anna will regularly defend her brother via social ...

Dominican basketball center/ power forward Al Horford who is currently ... now so he’s starting to understand it a little ...

Anna Horford has never shied away from defending her brother Al Horford from critics over the years. This time, however, she has taken aim at a much bigger target: the President of the United States.

Anna Horford is one proud sister after Al Horford's historic performance for the Boston Celtics on Monday night.