Four-time Olympic athletics champion Mo Farah and 14-time Grand Slam winning tennis player Rafael Nadal are among another 26 athletes whose leaked data has been revealed by hacking group Fancy Bears after a cyber-attack on the World Anti-Doping Agency (WADA).

Farah, who successfully defended his 5,000 and 10,000 metres titles at last month's Games in Rio de Janeiro, is one of eight reigning Olympic champions from Great Britain named on the latest list.

Others include golfer Justin Rose and two of the most high-profile members of the British rowing team in Peter Reed and Helen Glover, winners of their respective third and second Olympic titles in Rio.

Also named is gold and silver medal winning cyclist Callum Skinner and a trio of hockey players in Crista Cullen, Alex Danson and Samantha Quek.

Hungarian swimmer Laszlo Cseh, a six-time Olympic medallist, is another high profile inclusion.

Burundi's world indoor champion and Olympic silver medal winning 800m runner Francine Niyonsaba is another track and field athlete named along with France's 110m hurdles bronze medal winner Dimitri Bascou.

Olympic silver medal winning 3000m steeplechaser Evan Jager is one of four American medallists named on the latest list along with 4x100m relay champion Ariana Washington, gymnast Lauren Hernandez and archer Brady Ellison.

A second Frenchman in Rio 2016 team épée fencing gold medal winner Gauthier Grumier is also included.

Four members of the bronze medal winning Canadian women's football team are also named in Christine Sinclair, Melissa Tancredi, Rhian Wilkinson and Sophie Schmidt.

They are joined by Argentinian men's hockey gold medallists Lucas Rey and Facundo Callioni, Belgium's hockey silver medallist Loick Luypaert, Danish cyclist Niklas Larsen and handball player Casper Mortensen.

All the information appears, once again, to relate to legally obtained therapeutic use exemptions (TUE) granted by various sporting bodies in order to treat medical conditions.

There is thus no suggestion of wrongdoing by the athletes.

Farah received a TUE form to take corticosteroid triamcinolone in 2008, then in 2014 he was given permission to use three separate substances, including one by intravenous injection.

In 2015, the Briton was reported in The Guardian as having said that he had only ever taken one TUE in his career.

"Yes, I have," he said when asked if he had requested any.

"One TUE and that was when I was in Park City and I collapsed on the floor and I was taken to hospital and I was taken in the ambulance and I was put on the drip - there was only one."

Nadal was granted permission to take steroid medication betamethasone in 2009, and then in 2012 he received further clearance to take corticotrophins.

The Spaniard announced in March his plans to sue former French Minister for Health and Sport Roselyne Bachelot after she claimed the reason for him missing a seven-month period in 2012 was because he failed a drugs test.

Rose received a TUE just this year for the use of prednisolone.

WADA have already blamed a Russian group for the hack and has approached the country's Government to assist it in its investigation.

On Tuesday (September 14) the same hackers released details of of TUEs belonging to America's four-time Olympic gymnastics gold medallist Simone Biles, basketball player Elena Delle Donne and tennis superstars Serena and Venus Williams.

A second raft of leaked data the following day included British Tour de France winners Sir Bradley Wiggins and Chris Froome.

Cyclist Laura Trott and boxer Nicola Adams are also among those named.

“The World Anti-Doping Agency (WADA) confirms that, again today, the cyber hacker Group ‘Fancy Bear’ released a batch of confidential athlete data on their website, which they illegally obtained from a Rio 2016 Olympic Games account of WADA’s Anti-Doping Administration and Management System (ADAMS)," WADA said today.