Kylian Mbappe is back, right? Kinda? After a wobbly start at Real Madrid, we look at why he struggled, what's behind his improvement, and what we can expect for the rest of the season.

Carlo Ancelotti confirmed Kylian Mbappé has joined the long list of Real Madrid players sidelined due to injury.

Real Madrid have filed a formal complaint to the Spanish Football Federation (RFEF) asking for the “immediate submission of VAR audio” related to two decisions in their 1-0 defeat by Espanyol. The complaint follows referee Alejandro Muniz Ruiz’s decision to show Espanyol defender Carlos Romero a yellow card for a 60th-minute challenge on Kylian Mbappe as well as a disallowed goal by Vinicius Junior in the 21st minute after a foul by the France forward.

Carlo Ancelotti said Kylian Mbappe would miss Real Madrid's upcoming Copa del Rey quarter-final against Leganes with a bruised calf and backed his club's complaints about Spanish refereeing on Tuesday.

Real Madrid's attack, led by Kylian Mbappé and Vinícius Júnior, has accomplished a feat no other team in Europe's top five leagues has managed this season.