Matthieu Reeb, CAS Secretary General, speaks during a press conference about Russian athletes who are challenging the decisions taken by the Disciplinary Commission of the International Olympic Committee (IOC DC) ahead of the 2018 Winter Olympics in Pyeongchang, South Korea, Thursday, Feb. 1, 2018. (AP Photo/Felipe Dana)
Matthieu Reeb, CAS Secretary General, leaves a press conference after speaking about Russian athletes who are challenging the decisions taken by the Disciplinary Commission of the International Olympic Committee (IOC DC) ahead of the 2018 Winter Olympics in Pyeongchang, South Korea, Thursday, Feb. 1, 2018. (AP Photo/Felipe Dana)
Matthieu Reeb, CAS Secretary General, speaks during a press conference about Russian athletes who are challenging the decisions taken by the Disciplinary Commission of the International Olympic Committee (IOC DC) ahead of the 2018 Winter Olympics in Pyeongchang, South Korea, Thursday, Feb. 1, 2018. (AP Photo/Felipe Dana)