George the Golden Retriever may just be the biggest tennis fan in the world. That or he just really, really, really loves chasing balls.
According to his owner, George loves watching all sports but tennis is his favourite, with the Australian Open being a particular draw at the moment and if he's left to it, George will keep this up all day. We don't know where he gets the energy from.
Really, we're exhausted just watching him. We don't know how his compadre or owners put up with him.