Slideshow: 6 Major Upsets In Serena Williams' Historic Career
<p>Let's face it: We've all come to expect Serena Williams to win every single time. So when something like Saturday happens -- Williams fell to Angelique Kerber in a three-set thriller in the Australian Open final -- we can't help but look back at the times Williams didn't deliver. Here are six of the most shocking major upsets in her historic career.</p>
Let's face it: We've all come to expect Serena Williams to win every single time. So when something like Saturday happens -- Williams fell to Angelique Kerber in a three-set thriller in the Australian Open final -- we can't help but look back at the times Williams didn't deliver. Here are six of the most shocking major upsets in her historic career.
2004 Wimbledon Final
Serena Williams was the two-time defending Wimbledon champion. Maria Sharapova was a 17-year-old No. 13 seed from Russia -- who pulled off an epic 6-1, 6-4 upset. "It wasn't my day," a gracious Williams told the Centre Court crowd. "Maria played a really good match. Congratulations on your first Grand Slam."
2009 US Open semifinals
Williams, the defending champion, was in a tense battle with unseeded new mom Kim Clijsters when things got bizarre. At 5-6, 15-30 in the second set, Williams was called for a foot fault on her second serve, giving Clijsters match point. Dropping the f-word liberally, Williams told the line judge she was going to cram the ball down her throat. With the crowd booing, officials huddled to determine what to do. The decision? A penalty point was awarded to Clijsters, ending the match. "The normal feelings of winning a match weren't quite there," Clijsters said.
2011 US Open final
Back at the US Open for the first time since her controversial exit in 2009, Williams advanced to the final to take on ninth-seeded Samantha Stosur. Once again, Williams got into it with officials. Down a set and facing a break point in the first game of the second, Williams crushed a forehand and shouted "Come on!" before Stosur lunged for a return. Chair umpire Eva Asderaki ruled that Williams hindered Stosur's ability to play the point and awarded the point to Stosur. Stosur went on to a 6-2, 6-3 win to claim her first -- and so far only -- major. "I hit a winner, but I guess it didn't count. It wouldn't have mattered in the end," Williams said. "Sam played really well."
2014 Wimbledon third round
Williams struggled to pin down what went wrong after a 1-6, 6-3, 6-4 loss to Alize Cornet on her beloved lawn. "If I'm not playing, you know, a great, great match, these girls, when they play me, they play as if they're on the ATP Tour, and then they play other girls completely different. It's never easy, you know, being in my shoes. But you got to be ready." Days later, Williams retired from her doubles match with sister Venus after a scary scene. Looking unsteady and saying she was suffering from a viral illness, Serena double-faulted four times and was broken at love before walking away after the third game.
2015 US Open semifinals
Williams' quest to become the first tennis player to win a calendar-year Grand Slam since Steffi Graf in 1988 came to a stunning conclusion in the semifinals of the US Open. Williams lost to unseeded Italian Roberta Vinci 2-6, 6-4, 6-4. Coming into that match, Williams was 4-0 against Vinci and had never dropped a set. "I never felt pressure," Williams said. "I don't know. I never felt that pressure to win here. I said that from the beginning."
2016 Australian Open final
The defending champion, Williams hadn't dropped a set through her first six wins in Melbourne. That streak ended in a hurry against Angelique Kerber, who was playing in her first Grand Slam final. Kerber took the first set and then withstood a second-set rally from Williams before prevailing in three. Williams had 46 unforced errors in the match. "I try to win every single time I step out there, every single point, but realistically I can't do it," Williams said. "Maybe someone else can, but I wasn't able to do it."