The former World No.3 plans to play in Buenos Aires and Rio in 2022.
The fourth-ranked Czech announced the news on Thursday.
Tennis Channel will air Rafa Nada's Abu Dhabi first match in more than four months on Friday.
Players are prohibited from playing in or attending any tennis event sanctioned by any international tennis governing body or national association.
The 26-year-old finished 2021 at a career-high ranking.
The Greek plans to have a big season in 2022.
US Open champion, who was scheduled to face Belinda Bencic, is in quarrantine.
