Brazil international Neymar left Barcelona for Paris Saint-Germain in a world-record €222million deal in August.
Zinedine Zidane's side proved too strong for Unai Emery's Ligue 1 leaders as Los Blancos progressed to the quarter-final stages of the Champions League.
On Thursday, UEFA, the governing body of European football, said it was opening an enquiry into the events at the match in which PSG was eliminated from Europe.
Former Barcelona team-mate Ivan Rakitic said he would immediately open the door for former team-mate Neymar to return to Camp Nou.
Messi has reportedly told his old pal that Barca have moved on and he isn't needed.
"When Real bought me it was €72m or something like that..."
"And I believe Neymar has realised he is not in the right place to take them to the next level". Since the acquisition of Gareth Bale in 2013 the LaLiga club have not signed a player of "Galáctico" proportions and the club have identified Neymar as the key player to lead the front line in a post-Cristiano Ronaldo era at the Santiago Bernabeu. "As with many other players".
Speaking on a Q&A, Balague confirmed that the Spanish side see the player as a valuable member of their squad for the long-term.
The PSG board were convinced that the arrival of the Brazilian will add more to the attack when he links up with striker Edison Cavani but the relationship between the two have not been what the French side expected.
"We enjoy the Champions League, we are focused and we are going to give 100 per cent throughout the tournament".