Fourth-Place Medal

Michael Phelps is upset about his swim cap

Fourth-Place Medal

This is a picture of the cap Michael Phelps will wear at the 2012 Olympics.

(@MichaelPhelps)

See if you can notice a difference between this Games' model and the previous three that Phelps has worn during his Olympic career:

Sydney 2000

(Getty Images)

Athens 2004:

(Getty Images)

Beijing 2008:

(Getty Images)

The old caps had flags and names on each side -- a forward-facing flag on the left and a backward-facing flag on the right. That flip-flopped design ensured that the stars side of the flag was always surging forward with the swimmer on the TV side of the pool.

[ Related: Martin Rogers: Lochte laps Phelps in fashion realm ]

That won't be the case this year due to a change in international swimming rules that mandate a cap must be one-sided only. Phelps wasn't pleased with the decision. He wrote in a lengthy tweet accompanying the photo:

"Front and back of our caps We used to be able to have front and back side with flags but for some reason there are rules that tell us we cant do that anymore? Smh gotta love an organizing committee telling us we can't do that anymore."

[ Related: MMA fighter Rousey blasts Phelps' 'diva' behavior ]

Technically it was FINA, not the London committee that made the rule, but the end result is the same: A cap without symmetry or history. One-sided caps only look cool if you're the Pittsburgh Steelers. Hmm ... Maybe that's why Phelps, a noted Baltimore Ravens fan, is so upset.

Related Video on Yahoo! Sports:

Other Olympics Content on Yahoo! Sports:
Public pushes back against 'fat' comments lobbed at Aussie swimmer Leisel Jones
Gymnastics venue is really, really pink
Greek athlete expelled for racist tweet

Sign up for Yahoo Fantasy Hockey
Sorry you didn't like this comment. Please provide a reason below.

Are you sure?
Rating failed. Try again.
Request failed. Try again.
We will promote constructive and witty comments to the top, so everyone sees them!
Sorry, we can’t load comments right now. Try again.
    • Runners-up spot leaves PSG in dangerous waters

      Runners-up spot leaves PSG in dangerous waters

      By Julien Pretot PARIS (Reuters) - After faltering in the Champions League quarter-finals four times in a row, Paris St Germain could face the prospect of a last-16 exit after a mediocre performance against Ludogorets saw them finish the group … More »

      Reuters - 5 minutes ago
    • Golf-Play stopped at Ladies European Tour event after caddie dies

      The first round of the Dubai Ladies Masters golf tournament was suspended on Wednesday 7after the death of a caddie on the course, the Ladies European Tour said in a statement. "Everyone at the Ladies European Tour is extremely shocked and saddened … More »

      Reuters - 9 minutes ago
    • Djokovic has not worked hard enough, says Becker

      Djokovic has not worked hard enough, says Becker

      By Zoran Milosavljevic BELGRADE (Reuters) - Novak Djokovic lost his momentum in the second half of last season and was toppled as the world number one by Andy Murray because his work-rate dropped, the Serbian's former coach Boris Becker said on … More »

      Reuters - 12 minutes ago
    • Tuesday's Sports in Brief

      OXON HILL, Md. (AP) -- The reloading Boston Red Sox pulled off the biggest deal yet at the winter meetings, acquiring ace pitcher Chris Sale from the Chicago White Sox for a package of four prospects. … More »

      AP - Sports - 13 minutes ago
    • Djokovic splits with coach Becker

      Djokovic splits with coach Becker

      Tennis world number two Novak Djokovic has split with coach Boris Becker three years after adding the German multiple grand slam winner to his team. Serbian Djokovic, who won six of his 12 major titles after hiring Becker but has suffered a slump … More »

      Reuters - 15 minutes ago