Brianna McNeal, Olympic 100m hurdles champion, could face eight-year ban

• Charge is for tampering with the results management process'
• American had previous one-year ban for whereabouts violation

The Olympic 100m hurdles champion, Brianna McNeal, could face an eight-year ban after becoming the latest big-name athlete to be charged with an anti-doping violation.

In a statement, the Athletics Integrity Unit said the 29-year-old American had been provisionally suspended after being charged with tampering within the results management process", but did not give any more details.