Two first-half goals each for James Rodriguez and Alvaro Morata kept Real on course for a La Liga-Champions League double.
That stemmed the tide to an extend but Morata got himself on the scoresheet with half an hour played, crashing in via the underside of the crossbar after full-back Danilo streamed clear down the right flank.
"We now have a young squad, a good squad, and there are some loan players here too who will return to their clubs".
Said the Frenchman: "In football, the Champions League semi-final does not allow you to relax".
"I would like to play every minute of every match, as everyone does, I always want to go and score goals yet I am aware there are times when this isn't possible".
Navas could do little about Atletico’s opening goal at the home side won 2-1 on the night
Casemiro added that there are players who feature less but that does not mean that they are B-team.
The Spain worldwide has only started 13 La Liga games for Real this season, primarily playing back-up to the likes of Cristiano Ronaldo and Karim Benzema. We know there are players who feature less but you can sense we are never less than fully dedicated.
Villarreal also need a win to bolster their Champions League aspirations. "We had a good game today".
Neymar was in sensational form in his second game back from suspension and nudged Barcelona ahead in the 21st minute after pouncing on a deflected pass from Messi. The last time these two clubs faced off against each other in January, Barcelona needed a 90th-minute free-kick goal from Messi to tie the match at 1-1.
"I've told the players it is very hard, that we are facing the best team in the world, who score goals in every game, but that it is possible", the Argentine said after Atletico guaranteed a top-four finish in La Liga with a 1-0 win over Eibar on Saturday.
Toure: Hopefully United attack more next season
Mourinho said: "I don't know because I didn't watch". Eighteen matches and many miles in the players' legs. Mourinho and Tuanzebe against Swansea", he joked.