Instructions: In this task, you will be shown a passage. You need to write a fill-in-the-gap question based on your understanding of the events that might be inferred from the passage. Your question should be answerable based on the passage and only have one correct answer. Show the gap in your question with a _ .
Input: (CNN) Athletics' governing body the International Association of Athletics Federations (IAAF) has begun an investigation into allegations that the coach and agent for 100 meter world champion, Justin Gatlin, offered to supply performance-enhancing drugs to undercover reporters. British newspaper The Daily Telegraph reported on Tuesday that members of Gatlin's team -- coach Dennis Mitchell and athletics agent Robert Wagner -- offered to "illicitly supply performance-enhancing drugs" to its undercover reporters. IAAF president Sebastian Coe calls the allegations "extremely serious." US sprinter Gatlin, 35, who became the 100m World Champion in August, beating three-time 100m Olympic champion Usain Bolt, said on Instagram that he was "shocked and surprised" by the allegations and has fired Mitchell, who won the 1992 Olympic 100m bronze medal.Justlin Gatlin is the 100m world championAmerican has twice been banned for dopingBritish newspaper claims team members are involved in doping scandal
Output:
In a statement, the _ president, Coe told CNN: "These allegations are extremely serious and I know the independent Athletics Integrity Unit (AIU) will investigate in accordance with its mandate.