Vinicius Junior is set to miss his side's Champions League clash at Liverpool after sustaining a leg muscle injury, Real Madrid announced.

Reports suggest that Vinicius could be sidelined for at least three weeks, which means he could miss up to seven games in all competitions before the winter break, including against Girona and Athletic Bilbao in LaLiga and a Champions League visit to Atalanta.

The Brazilian played all 90 minutes against Leganes on Sunday, setting up Kylian Mbappe's opener in Madrid's 3-0 win. 

In the Champions League, he is the second-highest scorer, having netted four times in four matches, while only Rico Lewis (13) has created more chances than him (12).

"Following tests carried out today on our player Vini Jr by the Real Madrid Medical Services, he has been diagnosed with an injury to the biceps femoris in his left leg. Pending evolution," Madrid said in a statement.

Vinicius is the latest to join the club's lengthy injury list, which includes key players like Rodrygo, Eder Militao, Dani Carvajal, Lucas Vazquez, Aurelien Tchouameni and David Alaba.

Madrid are second in the LaLiga standings on 30 points. However, after two losses in their last three games in the Champions League, Carlo Ancelotti's side could be in trouble with a bad result at Anfield. They are 18th in the 36-team table with six points from four games.