Ronaldo is unsettled at Real over his new contract demands.
Tebas, however, played down Ronaldo's importance to Spanish football, as speculation surrounding the Portugal captain's future continues.
After a hugely successful eight-year stint at the Santiago Bernabeu that's included four Ballon d'Ors, two La Liga titles, four Champions League winners medals, it's little wonder the 33-year-old is ready to move on.
According to a report from ESPN, Ronaldo is "determined" to end his nine-year stay in the Spanish capital, but will only make a switch to clubs playing in particular competitions.
Recent talks between Ronaldo's agent Jorge Mendes and Real's top-brass haven't helped bring an agreement and the talisman's decision is "irreversible" unlike past year, Diario Record, a Portugal daily, has claimed.
Besides Zinedine Zidane's sudden departure, Real's speculated interest for Neymar has also complicated matters for Ronaldo as the club is reportedly preparing to offer a world-record bid to bring the Brazilian from Paris-Saint Germain forward.
"I think that Cristiano [will] stay at Real Madrid and Antoine Griezmann [will] stay at Atletico".
Ronaldo is now training with the Portuguese national squad, who are gearing up for the upcoming World Cup in Russian Federation.