CLEAN : Russians challenge doping ban at sports court

The transcript discusses the hearing of 39 Russian athletes appealing against the International Limping Committee. The hearing involves multiple appeals being heard in a combined session. The presence of athletes is uncertain, and they will be heard individually throughout the week. Witnesses will testify, but not all athletes may be present during these testimonies.

What uncertainty is mentioned regarding the athletes' presence during the hearings?

What might happen if not all athletes are present during the testimonies?