According to Dermot Corrigan of ESPN FC, the Royal Spanish Football Federation upheld Ronaldo's five-game ban after he was sent off in the first leg at the Camp Nou.
Ronaldo was given a five-game ban after reacting to a second yellow card, as he was judged to have dived in the penalty area.
The Portuguese star pushed match referee Ricardo De Burgos Bengoetxea before leaving the field, triggering an extra four-game ban.
Per Corrigan, Los Blancos protested against the suspension to the RFEF appeal committee but were unsuccessful in their endeavours. Real manager Zinedine Zidane said he was unhappy with the ban on Tuesday, but it seems Ronaldo will now spend an extended period in the stands.