Serena Williams vs. Bethanie Mattek-Sands Extended Highlights | 2015 US Open Round 3

The first serve was 115, Serena overhits it. She's really letting herself have it. On the fly, and it's good. She hangs on to hold. Well, you have an early headline. Serena Williams has lost a set. Relish it. We talked about Serena's adrenaline. What about Bethany's? Just when you thought she was in a groove. Not so much. Serena is broken. The upset dream still alive. She just continues to defy what you think is going to happen. The place is packed. These are champion shots right here. There'll be no tie break. There'll be a third set. Just as she was down in the first set, this time she's up in the third set. Three games to love. She keeps coming. Curve ball at 105. It is 5-love Serena. And there it is. The Grand Slam dream is still alive, but what a fight. And it should be hard to get there.