Professional tennis has become an extremely physical and unbelievably competitive sport. Injuries are the bane of tennis players, and it goes with the territory.

For some reason, every time I peak in my career, I injure myself. So, I'm constantly on the comeback trail.

Not many people know, but my joints are extremely hypermobile, and that's why I'm more prone to injuries. That's why most of my major injuries were with the joints. I had a career-threatening wrist injury where picking up a fork to feed myself was a problem, and the thought of playing tennis again was so far from my mind.

You want to try and win as many slams as possible in your career. As a tennis player, that's what we always dream of as a kid, wanting to play slams, wanting to win them.

The chief condition on which, life, health and vigor depend on, is action. It is by action that an organism develops its faculties, increases its energy, and attains the fulfillment of its destiny.

I obviously grew up on a court, but there wasn't any, 'All right, we're going to name him 'Tennis,' and he's going to be a professional.'

The NRA was one of the items that we pointed to when we added money to the labor, health and Education appropriations bill by reducing the size of the tax cut.

I am incredibly thankful that football has provided me with a platform to give back and I am proud that so many of my colleagues have decided to use this stage to create positive and impactful change in our local communities and around the world.