The sportswear giants broke off their deal with the world sprint champion who's awaiting a four-year ban for drug abuse.

Yuan received a four-year ban while her coach faces a 15-year ban.

Six months ago, the federation issued the four-year ban.

He was also given a four-year driving ban.

If not, he faces a four-year ban from competition.

He received a four-year ban from the sport.

He faces a four-year ban after failing a drugs test at the Barcelona Olympics.

She received a four-year ban from competition for her use of stanozolol (a performance-enhancing steroid.

It was reported that Gatlin planned to serve his four-year ban from the track on a football field.

South Korea has also ruled that four-year bans violate right-to-work laws, officials said.