Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Alberto Salazar has responded to reports of a rift between Mo Farah and the Nike Oregon Project branding them 'absolutely false.' Rather than train with his team at their Portland base, Farah has been training at altitude in Font-Romeu, France. 'Mo is on a different training cycle, as he always is at this time of year,' Salazar told Oregonlive.com. 'So I send him to Europe to get accustomed to the time zone. This is how we've always done it it. Scroll down to video The double Olympic champion pulled out of the Sainsbury's Birmingham Grand Prix earlier this month, stating he was 'physically and emotionally drained' in the wake of allegations made by the BBC's Panorama programme against his coach Salazar and training partner Galen Rupp.Mo Farah has been training at altitude in Font-Romeu, FranceBBC's Panorama made allegations against Farah's coach Alberto SalazarFarah pulled out of Birmingham Grand Prix earlier this monthDouble Olympic champion said he was 'physically and emotionally drained'Farah will return to action at Monaco Diamond League meeting on July 17 
 Question:Among them, it is alleged that _ put Rupp on testosterone medication at the age of 16.

Alberto Salazar