The game's lead referee, Gianluca Rocchi appeared a bit shaken up immediately following the incident, but after a brief stop to check for any signs of concussion the action resumed.
Madrid, playing at home, came out on top 3-1 with Christiano Ronaldo notching a brace and Marcelo adding the other goal. Adrien Rabiot netted the only goal for the visitors.
The second leg will take place in Paris, on March 6.