If you can keep playing tennis when somebody is shooting a gun down the street, that's concentration.
Serena WilliamsThe knee just isn't 100 percent. It's hard to be out there when you know that you can't play at your best and could potentially make it worse.
Serena WilliamsI always ask my dad why wasn't I a lefty? Even when I was younger I wanted to be lefty. I could have been really good.
Serena Williams