*With one eye on Rio de Janeiro, swimmings stars begin the battle at the World Championships in Kazan to prove their form heading into the 2016 Olympics.*
As ever, the US bring a star-studded team to the Tatarstan capital, 800 kilometres east of Moscow, with marquee names including Olympic champions Missy Franklin, Katie Ledecky, Ryan Lochte and Nathan Adrian.
Treble world record-holder Ledecky is the only American to top the 2015 world rankings in her events, with the years best times in the 400M, 800M and 1,500M freestyle.
Ledecky was responsible for breaking two of the six world records which fell in the Barcelona pool when the world championships were last held two years ago.
Franklin won six gold medals in Barcelona, but has something to prove in Kazan after failing to win an event at a Santa Clara meet in June -- her only world championships tuneup.
Likewise Lochte, who has five Olympic titles and 15 long course world championship victories, is eager to bounce back from a 2014 he called "probably my worst year of swimming".
The 30-year-old will be swimming at his sixth world championships and is looking for a fourth straight win in the 200M individual medley, but is taking nothing for granted.
"Theres a bunch of other people out there," Lochte said. "Just because theyre not there doesnt mean it should be a shoo-in for me."
*Aus bank on Campbells'*
The Australian challenge will be led by two defending world champions in freestyler Cate Campbell and breaststroker Christian Sprenger, who will resume his battle with South Africas Cameron van der Burgh over 50M and 100M.
Campbell will defend her 100M freestyle title and, if all goes to plan, she will line up for the final alongside her sister Bronte.
The sisters are likely to be in action on Sunday in the womens 4x100M relay before the heats for the womens 100M freestyle next Thursday.
Netherlands Femke Heemskerk along with Cate Campbell has posted the joint fastest time for 2015 and along with Olympic champion Ranomi Kromowidjojom, the Dutch swimmers will be pushing the Australian sisters all the way.
Of the teenage talent to watch, 19-year-old Australian Mack Horton has posted the worlds fastest 400M and 800M freestyle times.
Teenage breaststroke sensation Ruta Meilutyte, who won the 2012 Olympic 100M breaststroke as a 15-year-old, is now 18 and the Plymouth-based teenager will be looking to defend her world title she won two years ago.
The Lithuanian set both the 50M and 100M breaststroke world records at the Barcelona championships in 2013.
At the other end of the age spectrum, 35-year-old Grant Hackett returns after an almost seven-year hiatus and will swim in the 4x200M relay.
*Watch out for Sun Yang*
Sun Yang leads Chinas bid to repeat the five golds they won in Barcelona and he will start his campaign in the 400M freestyle heats on Sunday.
The Chinese giant will be looking to add the world title to his Olympic gold in the mens 400M freestyle after a helter-skelter couple of years which also saw him banned for three months for doping.
Stunned by Japans Kosuke Hagino in the 200M at last years Asian Games, the Chinese giant will want to prove his mettle as world champion in the 400M, 800M and 1500M freestyle.
After flopping in Barcelona, when she failed to take a medal, Ye Shiwen, the Olympic 200M and 400M individual medley champion, has something to prove.
Hungarys Katinka Hosszu, the world champion over both distances, comes to Kazan on the back of a stellar season and will be out to attack Yes eye-popping world 400M IM record of four minutes, 28.43secs set at the 2012 Olympics.
Injury, illness and suspension will rob Kazan of potential medallists.
Michael Phelps, the sports greatest star, withdrew from the USA team after a drink-driving arrest last year.
Australias 100M freestyle world champion James Magnussen will not be able to defend the title after shoulder surgery.
Frances 200M freestyle world and Olympic champion Yannick Agnel will sit out Kazan with pleurisy.
South Koreas Olympic medallist Park Tae-hwan is serving a doping ban while Japans Olympic bronze medallist swimmer Kosuke Hagino is also missing after fracturing his elbow in a bicycle accident.
*
Sejwal in action*
Meanwhile, the Indian swimming contingent will also begin their campaign at the World Championships with Saurabh Sangvekar and Sandeep Sejwal taking to the pool on Sunday.
Sangvekar will be seen in action in the 400M freestyle, in which Sun Yang of China will be one to watch out for, while breaststroker Sejwal will be looking to make his mark in the 100M breaststroke. Reported by Deccan Herald 2 days ago.
As ever, the US bring a star-studded team to the Tatarstan capital, 800 kilometres east of Moscow, with marquee names including Olympic champions Missy Franklin, Katie Ledecky, Ryan Lochte and Nathan Adrian.
Treble world record-holder Ledecky is the only American to top the 2015 world rankings in her events, with the years best times in the 400M, 800M and 1,500M freestyle.
Ledecky was responsible for breaking two of the six world records which fell in the Barcelona pool when the world championships were last held two years ago.
Franklin won six gold medals in Barcelona, but has something to prove in Kazan after failing to win an event at a Santa Clara meet in June -- her only world championships tuneup.
Likewise Lochte, who has five Olympic titles and 15 long course world championship victories, is eager to bounce back from a 2014 he called "probably my worst year of swimming".
The 30-year-old will be swimming at his sixth world championships and is looking for a fourth straight win in the 200M individual medley, but is taking nothing for granted.
"Theres a bunch of other people out there," Lochte said. "Just because theyre not there doesnt mean it should be a shoo-in for me."
*Aus bank on Campbells'*
The Australian challenge will be led by two defending world champions in freestyler Cate Campbell and breaststroker Christian Sprenger, who will resume his battle with South Africas Cameron van der Burgh over 50M and 100M.
Campbell will defend her 100M freestyle title and, if all goes to plan, she will line up for the final alongside her sister Bronte.
The sisters are likely to be in action on Sunday in the womens 4x100M relay before the heats for the womens 100M freestyle next Thursday.
Netherlands Femke Heemskerk along with Cate Campbell has posted the joint fastest time for 2015 and along with Olympic champion Ranomi Kromowidjojom, the Dutch swimmers will be pushing the Australian sisters all the way.
Of the teenage talent to watch, 19-year-old Australian Mack Horton has posted the worlds fastest 400M and 800M freestyle times.
Teenage breaststroke sensation Ruta Meilutyte, who won the 2012 Olympic 100M breaststroke as a 15-year-old, is now 18 and the Plymouth-based teenager will be looking to defend her world title she won two years ago.
The Lithuanian set both the 50M and 100M breaststroke world records at the Barcelona championships in 2013.
At the other end of the age spectrum, 35-year-old Grant Hackett returns after an almost seven-year hiatus and will swim in the 4x200M relay.
*Watch out for Sun Yang*
Sun Yang leads Chinas bid to repeat the five golds they won in Barcelona and he will start his campaign in the 400M freestyle heats on Sunday.
The Chinese giant will be looking to add the world title to his Olympic gold in the mens 400M freestyle after a helter-skelter couple of years which also saw him banned for three months for doping.
Stunned by Japans Kosuke Hagino in the 200M at last years Asian Games, the Chinese giant will want to prove his mettle as world champion in the 400M, 800M and 1500M freestyle.
After flopping in Barcelona, when she failed to take a medal, Ye Shiwen, the Olympic 200M and 400M individual medley champion, has something to prove.
Hungarys Katinka Hosszu, the world champion over both distances, comes to Kazan on the back of a stellar season and will be out to attack Yes eye-popping world 400M IM record of four minutes, 28.43secs set at the 2012 Olympics.
Injury, illness and suspension will rob Kazan of potential medallists.
Michael Phelps, the sports greatest star, withdrew from the USA team after a drink-driving arrest last year.
Australias 100M freestyle world champion James Magnussen will not be able to defend the title after shoulder surgery.
Frances 200M freestyle world and Olympic champion Yannick Agnel will sit out Kazan with pleurisy.
South Koreas Olympic medallist Park Tae-hwan is serving a doping ban while Japans Olympic bronze medallist swimmer Kosuke Hagino is also missing after fracturing his elbow in a bicycle accident.
*
Sejwal in action*
Meanwhile, the Indian swimming contingent will also begin their campaign at the World Championships with Saurabh Sangvekar and Sandeep Sejwal taking to the pool on Sunday.
Sangvekar will be seen in action in the 400M freestyle, in which Sun Yang of China will be one to watch out for, while breaststroker Sejwal will be looking to make his mark in the 100M breaststroke. Reported by Deccan Herald 2 days ago.