Salwa Eid Naser was already being investigated for missing doping tests when she raced to an upset win in the 400 meters at the world track and field championships.The Athletics Integrity Unit confirmed Sunday that Naser was already under scrutiny for three “whereabouts failures” prior to her world championship win in Doha in October.That means that Naser could be stripped of her gold medal if she's found guilty.
She also faces missing next year's Olympics in Tokyo.The Nigeria-born sprinter, who represents Bahrain, surged past Olympic champion Shaunae Miller-Uibo to win in 48.14 seconds, the fastest time since 1985.The AIU, which oversees drug testing and disciplinary cases in track, said Sunday that Naser had already been under.