Ronaldo out of Galatasaray game
The Portugal international and Ballon d'Or candidate hurt his left hamstring in Saturday's 5-0 victory at Almeria.
Madrid coach Carlo Ancelotti says Ronaldo will miss the Group B match at the Santiago Bernabeu Stadium but could return for Saturday's Spanish league game against Valladolid.
Ancelotti says ''he has a very small problem, and tomorrow he will train again. We don't want to take the risk with him of making it worse.''
Madrid will also be without center back Raphael Varane, who has a sore right knee.
Madrid leads Group B with 10 points and can secure its place in the next round with a draw on Wednesday.