Ulyukayev is on trial on charges of extorting a $2 million bribe from Sechin, in exchange for Ulyukayev approving a business deal. Sechin was called to court to testify but has missed the first two court sittings since then.
"My key task is to fulfill my responsibilities as the president of Rosneft. Therefore, as soon as we can agree on the schedule, I will of course deliver on all the requirements," Sechin said.
(Reporting by Katya Golubkova; Editing by Christian Lowe)