The 20-year-old raptured a ligament during the 1-1 draw with Aston Villa on Saturday.
“Carlos is bearing the consequences of the challenge and unfortunately he has ruptured a ligament on his ankle,” boss Mark Hughes said.
“The likelihood is he will be out for three to four weeks.”
“It’s disappointing because Carlos has made a huge impact during the short time that he’s been with us so to not have him available going into a game against Chelsea is a big loss for us,” Hughes added.
