With every Grand Slam, there are superstars that won't live up to their credentials.
Whether it's an injury, bad luck or poor play, some players just have bad tournaments. Wimbledon 2012 will be no different. For a variety of reasons, these stars will disappoint their faithful fans once again.
For this article, I've chosen four men and four women who will not live up to expectations at Wimbledon.
After winning the Australian Open this year, it looked like Victoria Azarenka might become a threat in women's tennis.
Not so much.
She's a good player, but she's not ready to be the No. 1 player in the world. Her fourth-round exit at Roland Garros will be remembered as a preview for her early exit at Wimbledon.
She has a bright future, but her time is not here yet.
John Isner is the top-ranked American player, but that isn't saying much.
After his quarterfinals appearance at last year's U.S. Open, people thought he might start to play a little better. Unfortunately, he has been ousted early in the last two Grand Slams.
No one expects anything big from Isner, but he has a relatively easy draw for his first few matches. However, don't expect him to win more than one match.
Serena Williams has been downright awful over the past year.
She made it to the U.S. Open Final, but she hasn't made it past the fourth round in any of the other three Grand Slams. She hasn't won a slam in two years, and she hasn't looked like herself in that time.
Williams needs some time away from the game. Her career is winding down, but a brief recovery time would help her. Instead, she's trudging right back onto the court to disappoint everyone once again.
David Ferrer has been on tour for over a decade, but he has never played in a Grand Slam Final.
The semifinal appearance will make Ferrer a popular semifinal sleeper pick. Don't buy into it. He'll be out before the quarterfinals.
Petra Kvitova will not repeat as Wimbledon champion.
She might win it again at some point in her career, but not this year. She's been solid in her last few Grand Slams, but she hasn't done anything special. In order to win a major tournament, a player must do something special.
Kvitova had a very good showing last year, which will encourage people to look at her as a favorite. However, it's incredibly tough to win consecutive Wimbledons. Aside from the Williams sisters, the last woman to win back-to-back Wimbledon crowns was Steffi Graff in 1995 and 1996.
Kvitova will have an incredibly tough time adding her name to that list.
Can it really be a disappointment if you always do exactly what people expect you to do?
Andy Murray is usually a trendy pick every third Grand Slam. Experts think he's turned it around, and he will finally win that ever-elusive title.
Don't count on it.
Murray has made it to three straight Wimbledon semifinals, but he has yet to make a final. If you expect Murray to have a poor showing in the semis, he won't disappoint. If you think this might be the tournament he breaks through and finally wins, he will let you down once again.
Maria Sharapova completed the career Grand Slam at the French Open earlier this month.
Now she's back at No. 1 and ready to rattle off some Grand Slam victories. Unfortunately, she's still Sharapova.
Sharapova has only reached consecutive Grand Slam finals once in her career (2006 and '07), and neither of those tournaments were on grass. Following her three Grand Slam victories, she failed to reach the quarterfinals twice.
Look, Sharapova's a great player, but she's due for a letdown. She will disappoint her fans once again and fail to make it past the quarterfinals.
Roger Federer is a legend at Wimbledon.
He's won six titles there, and he's usually a threat to win another one. However, his quest for a seventh title will continue another year.
I'm not guaranteeing Federer will get knocked out early or anything like that, but don't expect him to make the final. In fact, don't be surprised if Federer gets upset and loses in the quarterfinals. He hasn't made it past the quarters at Wimbledon since 2009.
He's a great player, but this simply won't be his tournament.