Real Madrid boss Carlo Ancelotti has played down Cristiano Ronaldo's leg injury that forced him off in their 3-0 win over Borussia Dormund.

Ronaldo scored his 14th Champions League goal of the season in their emphatic victory over the German outfit in the first leg of their quarter-final clash.

However, Los Blancos' top goalscorer was substituted in the final 10 minutes after receiving treatment on his left knee, but Ancelotti does not think it's anything serious.

"He was bothered a bit by his knee, we needed to defend and to avoid any risks, we've substituted him. It's not a problem. He isn't injured," said Ancelotti

"We'll see how it goes," he added. "At this moment we're not concerned by the niggle.

"If it continues, naturally we'll rest him but we're not thinking about that because the player is calm. There's not a problem at the moment."