Ancelotti said that the 24-year-old, who has a problem with his left leg, was disappointed at missing out on his home debut at the Santiago Bernabeu, but is confident that the winger will be available for Saturday's clash with Elche.
"He is very upset at the moment because he was desperate to play his first game at the Bernabeu," said Ancelotti in his post-match press conference.
"I don't think it is a big problem, we have to wait until tomorrow to do a scan to see how bad the injury is.
"He wasn't comfortable, he was worried and so it was better to avoid problems. It is difficult to recover in three days, I am sure he will be ready for the game on Saturday."