Villarreal coach Unai Emery told his side to savour their achievement, after they progressed past Bayern Munich to the Champions League semi-finals with a 1-1 draw on Tuesday.

Coming into the second leg in Munich up 1-0 on aggregate, the Yellow Submarine continued to absorb pressure.

Robert Lewandowski levelled the tie at 1-1, seven minutes into the second half via Thomas Muller's assist, but Samuel Chukwueze put Villarreal through with his goal in the 88th minute.

According to Emery, savouring that achievement must not come as a result of Villarreal's status in comparison to European football's elite, but because of the work it took to get there.

"Let's enjoy the semi-finals, knowing we are here not because of how nice we are, or to let others say we are a nice and small town, but because we've worked for it," Emery told Marca post-match.

"We are professionals, but we also have feelings and today we have played a huge game and for this, a lot had to do with all the good we did in the first leg.

"It was essential to play a perfect game defensively, because against opponents of this level it is the only way to progress. We knew that we were going to have five moments throughout the match and we took advantage of one, thanks to the fact we have approached the tie with humility."

The Europa League holders approached Bayern in the same manner that saw them through Juventus in the last-16, keeping shape and playing in transition, while trying to restrict Bayern to low quality opportunities.

It worked again in the second leg, with Bayern particularly managing a cumulative xG of 1.06 despite 15 shots in the second half, compared to Villarreal's 0.64 from only two attempts.

It mattered little to Raul Albiol, who had to mark Lewandowski, saying extra time might have been a bridge too far.

"It's been a long 90 minutes and we didn't want extra time because it would have been too much suffering against an opponent with strikers of a very high level, who have forced us to be very focused, although they have scored a goal off a half-chance," Albiol told Movistar+ post-match.

"It is a success for a town, a club, a board, a team and all of Spanish football. It has been very nice and it has shown, as we did last year in the Europa League, that we compete very well. Work and passion are fundamental."

Spain have added Raul Albiol to the group of players on standby to plug holes in Luis Enrique's Euro 2020 squad if COVID-19 strikes any further blows.

Captain Sergio Busquets tested positive for coronavirus on Sunday and was taken away from the national team training camp, although it is hoped he will be able to return.

Subsequent tests on remaining players and staff have all showed up negative results, but Spain are erring on the side of caution by ensuring they have suitable reinforcements if needed.

That is why versatile Villarreal defender Albiol, a 56-cap international who won the Europa League with his club side last month, comes into the picture at the age of 35.

With the senior squad in isolation and training individually, it will be a Spain Under-21 team who line up in a friendly against Lithuania on Tuesday, but senior caps will be awarded.

It was also announced on Monday that Leeds United forward Rodrigo Moreno and three midfielders in West Ham's Pablo Fornals, Valencia's Carlos Soler and Celta Vigo's Brais Mendez would be called in to train in a 'parallel bubble', being ready to step in should Luis Enrique's squad be depleted.

Spain's opening game against Sweden at Euro 2020 takes place on June 14 in Seville.

While the senior squad suck up the blow of missing out on a final international before the tournament begins, Spain Under-21 boss Luis de la Fuente will give his youngsters a "dream" outing.

De la Fuente said in a news conference: "This does not change the way I work, nor my responsibility and my professionalism. The players, like me, will be very excited to represent Spain.

"For us it is a great dream. I guarantee that the players and the coaching staff are only think about winning."

He said the match day would be "a beautiful day because the boys are going to show their potential".