Sun, who was banned for three months in 2014 for a separate doping offence, has always protested his innocence in the murky events of September 2018.
CAS to decide on Sung Yang's doping retrial by 'end of June' as Chinese swimmer’s Tokyo hopes hang by a thread
"The date of the decision is not yet known, but it will be by the end of June at the latest," a spokesperson for the Court of Arbitration for Sport (CAS) told AFP.
The new hearing will take place by video link and is scheduled to last from Tuesday to Thursday. CAS says a decision will be announced "at a later date".
Australian swimmer Mack Horton says he's moved on from feud with Sun Yang, will be no different if they cross paths at Tokyo
Horton famously refused to stand on the podium alongside Sun at the 2019 world championships, reigniting a row from the 2016 Rio Olympics where he labelled the Chinese star a "drug cheat" after beating him to the gold medal.
She clocked 2:05.44 in the women's 200m butterfly, easily the fastest time in the world this year, and also blitzed the rest of the field to win 100m fly and 50m freestyle gold.
Sun Yang, who is fighting to save his career after a doping controversy, has been given new hope of competing at the Olympics after China said reigning world champions were eligible for Tokyo.
At stake in a second CAS hearing would be Yang’s chance to compete at the pandemic-delayed 2020 Tokyo Olympics now set for July 2021.
Chinese swimmer Sun Yang lodges appeal at Swiss federal court to overturn eight-year ban, says report
Sun was banned by the Switzerland-based Court of Arbitration for Sport (CAS) in March after the World Anti-Doping Agency (WADA) appealed against a decision to clear him of wrongdoing during a 2018 doping test.
Sun Yang’s coach Denis Cotterell parts ways with tainted Chinese swimmer, says won’t support his appeal at Swiss court
Sun Yang’s coach Denis Cotterell has cut ties with the Chinese Olympic champion following the swimmer’s eight-year ban for doping, Australian media reported on Sunday.
Court of Arbitration for Sport criticises Chinese swimmer Sun Yang for lack of remorse in doping case
The Court of Arbitration for Sport (CAS) criticised Chinese swimmer Sun Yang for showing “no regret” for his actions during an aborted doping test that resulted in an eight-year ban for the Olympic champion.
South Africa's Olympics gold-medallist swimmer Chad le Clos says he always knew Chinese swimmer Sun Yang was cheating
Sun, a multiple world and Olympic champion, was banned for eight years last Friday for missing an out-of-competition test in 2018
Mack Horton says the eight-year doping ban handed out to his rival Sun Yang, who the Australian swimmer once famously described as a “drug cheat”, was a statement to the world about clean sport.
China's double-Olympics gold medallist swimmer, Sun Yang, handed eight-year ban by Court of Arbitration for Sport
A FINA report said Sun questioned the credentials of the testers before members of his entourage smashed vials containing his blood samples with a hammer
Translation issues plague early stages of swimmer Sun Yang's hearing at Court of Arbitration for Sports
Sun has been cleared of wrongdoing by swimming governing body FINA over his conduct during a random drug test in September last year, but the World Anti-Doping Agency (WADA) has appealed to CAS against that ruling
Chinese swimmer Sun Yang rejects doping charges, levies blame on testers for failing to identify themselves correctly
Attending a one-day CAS public hearing in person in a bid to clear his name, Sun, accused of using a hammer to smash a vial containing his own blood sample, maintained his innocence and said testers were unprofessional and ignored protocol
The court action follows an explosive report from FINA's own anti-doping committee in January saying Sun had used a hammer to smash a blood sample during an out-of-competition test in September last year.
Chinese swimmer Sun Yang says 'facts are distorted' in doping controversy, eager to tell his side of story during CAS hearing
China's triple Olympic swimming champion Sun Yang on Tuesday described as intolerable the speculation surrounding him ahead of a Court of Arbitration for Sport (CAS) hearing into a murky missed drugs test.
Court of Arbitration for Sport postpones swimmer Sun Yang's hearing till October; doping case hearing to be public
The Court of Arbitration for Sport said on Tuesday it was postponing its hearing on the decision by FINA, the governing body of swimming, to clear Chinese star Sun Yang of doping.
Mack Horton said he would have carried out his anti-doping podium protest against China's Sun Yang even if he had known fellow Australian swimmer Shayna Jack failed a drugs test.
FINA World Championships 2019: From Caeleb Dressel's record-breaking exploits to protests against Sun Yang, best moments from event
From Caeleb Dressel's relentless pursuit of gold to the record-breaking exploits of Adam Peaty and Hungary's Kristof Milak, we look at the best of the world swimming championships in Gwangju