Real Madrid midfielder Claude Makelele will miss this week's Champions League semi-final second leg against Juventus in Turin.
Makelele, a French international, strained a thigh muscle in Saturday's draw at Recreativo Huelva and will be sidelined for two weeks.
Ronaldo's chances of playing against the Serie A champions are also very slim, according to medical staff.
The Brazilian striker injured his calf during last week's 2-1 first leg win at the Bernabeu.
But Zinedine Zidane and Luis Figo appear to have shaken off minor injury worries and should play.
Striker Raul will also be available after making a quicker-than-expected recovery from an appendix operation.
