New Delhi, Sept. 20 -- Two-time world championships medalist runner Mo Katir failed to overturn a four-year ban in a doping rules case on Friday, though avoided being excluded from the 2028 Los Angeles Olympics.

The Court of Arbitration for Sport said it dismissed Katir's appeal against a four-year ban imposed for missed doping tests and then tampering by falsifying travel documents in an attempt to cover up the rules breach.

The Athletics Integrity Unit counter-appealed to extend the ban by a fifth year into February 2029. That also was dismissed by judges at CAS, the court said, explaining "there were no aggravated circumstances to justify an increase."

The AIU also sought a retroactive disqualification of Katir's 2023 results, and t...