Mo Farah splits with coach Alberto Salazar

"I'm moving back to London. I really miss home," Farah said.

Oct.31 - SportLand: Four-time Olympic champion Mo Farah has split with coach Alberto Salazar and will return to Britain.

Farah, 34, who won 5,000m and 10,000m gold at London 2012 and Rio 2016, said his decision was based on a desire to move back to London.

Salazar is being investigated by the US Anti-Doping Agency (Usada) after BBC's Panorama made allegations about drugs use at his US training base.

"I'm moving back to London. I really miss home," Farah said, BBC reports. He will now work with Gary Lough, who previously coached wife and women's marathon world record holder Paula Radcliffe.  

Farah, 34, retired from the track after winning gold and silver medals at the London world championships this summer and will now focus on the marathon. All of Farah’s major championship successes have been achieved since he moved to the USA to work with Salazar in 2011 but a BBC documentary, which aired in 2015, called the Cuban-born coach’s methods into serious question.