Carlo Ancelotti branded the decision to not send off Espanyol's Carlos Romero -- who later went on to score the only goal in his team's 1-0 win over Real Madrid -- as "inexplicable" on Saturday, after the defender apologised for his challenge on Kylian Mbappé.
Romero was shown a yellow card by referee Alejandro Muñiz Ruiz for his foul on Mbappé in the 61st minute, bringing down the Madrid forward with a tackle from behind as he broke away on the counter attack.
The defender later went on to score a dramatic 85th minute winner, with the defeat leaving leaders Real just one point clear of rivals Atlético Madrid at the top of the LaLiga table.