Serena Williams' Weird Behavior at Wimbledon

Tennis royalty seen behaving strangely, even becoming disoriented on the court.
1:37 | 07/01/14

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Transcript for Serena Williams' Weird Behavior at Wimbledon
Hong Kong's history. And Serena Williams, suddenly unable to play tennis. Linzie Janis on what millions of fans witnessed, and what Williams is saying tonight. Reporter: She usually hits them like this. But today, something very strange happening, missing ball after ball in her warmup. Doctors checking her out. Still, she played her doubles match with sister Venus. But it gets worse. Literally dropping the ball. Watch, she winds up, and slams the ball into the net. She keeps playing, only to blow it again. Head bowed, she steps to the lines. The match ends abruptly. Fans are concerned, tweeting really sad to see her like that. And that looks serious. Doctors say she's suffering from a viral illness. Fans were alarmed by what they saw today. Williams, such a fixture in this tournament. But she plans on being right back here again next year. Thank you. And back here at home, a

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