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The ban comes after he tested positive last July for the banned substance ostarine glucuronide, which the athlete said he consumed through sports supplements.
Barber's agent Paul Doyle said he died Wednesday at home in Kirkwood, Texas, of medical complications.
The Olympic champion cleared 6.22 metres to add one centimetre to his previous mark at the World Athletics Indoor Tour Silver meeting in Clermont-Ferrand, France.
Sports Minister V Abdurahiman, who represents the Tanur assembly constituency, has met the trio and assured full support from the state government to help them realise their dreams.
Rojas jumped over 15 metres four times in the women's triple jump final, landing the record on her sixth and final attempt.
The talk of the Tokyo track, however, was the failure of the formerly all-conquering American men.
Swedish world record-holder Armand Duplantis told reporters at a press conference on Thursday that he had not been in contact with his American rival Kendricks.
American-born Swede Duplantis broke Frenchman Renaud Lavillenie's record of 6.16m set in February, 2014, in Donetsk, Ukraine.
Duplantis cleared 6.15 metres to win gold at the Rome Diamond League meeting and continue his remarkable, unbeaten season.
Results 1-9