You are right. Liverpool had to use their full strength to win. Villarreal is a very tactical team. They will probably apply a new strategy against Liverpool and will definitely want to win. Since the first leg was Liverpool's home match. So Liverpool must win the home match. If Liverpool is not able to win the home match, then maybe they will not be able to go to the final.
Liverpool still has to face Everton tomorrow in the EPL match. Everton is a team that almost slipped into the relegation zone. Liverpool has the opportunity to rest their players in this match to be better prepared for the first leg against Villarreal.
although the Everton game is also important, I think they can handle it by playing it safe enough. Liverpool has the motivation to get 2 trophies this season. and it is very possible to achieve at this time. Hopefully, Liverpool can perform optimally.
Do you really think Klopp will let his players rest and lose the slim chance for the title? I think they will go out with the A team and play brilliantly, Villareal fought strong, their opponents underestimated them and lost but Liverpool will certainly kick them out with no problem.
For Liverpool to win the Premier League trophy is also important, so I agree with you, Klopp doesn't want Liverpool to lose points against Everton.
So I believe Klopp will play the main players they have, Liverpool must win in every remaining game in the Premier League. So Klopp will not take
the risk of resting some of their main players, unless Liverpool are already ahead by a sizable goal difference before the game ends. There is
a possibility that Liverpool's main players who played against Everton will be replaced by Liverpool's reserves, so that their fitness is maintained.
I think Liverpool is one of the big teams in the Premier League that never underestimates any opponent they will face. Therefore, even though
the opponent they faced was Everton, who played inconsistently and almost entered the relegation zone. But Liverpool will play their best squad,
just to ensure victory can be obtained.
I believe Liverpool players are used to busy schedules, even though facing Everton using the first team. It doesn't mean Liverpool will lose
against Villarreal, I believe against Villarreal Liverpool players are still in good health. Since there are still 4 days gap for the Liverpool players
to rest and recover their fitness, and can put out their best performance to be able to beat Villarreal in the Champions League 1st leg match.