With Europa League success now their only way to qualify for next year's Champions League, Mourinho has admitted he will be resting players for the rest of the week.
"You always have a little bit of rivalry, especially if you are both the same kind of level". The next one, of course, (Marouane) Fellaini has to play the next one.
They will have to contend with three further Premier League games until then, with their final game of the season coming just three days before the crucial clash in Sweden.
"The best thing about it is that you've earned it".
United's lack of interest in the match can only help the hosts as they seek their 13th league victory of the season, and Puel will want his side to take advantage of the unique situation.
"This is insane. And I repeat the same - thank you Michael Oliver [for sending off Herrera] because we were out in the FA Cup".
"The accumulation of the games, I never had that", Mourinho told a news conference on Tuesday.
"If those boys, which he is using for his European games, are not playing at the weekend in the Premier League, they have as much rest and exactly the same preparation time as my players and look at the amount of players he has available to rotate".
"And hopefully nobody will complain because we have a final three days later". I am giving one-day holiday, à la carte, if you understand what I mean.
"They're obviously hurting very much in the dressing room", Berizzo said.
"What I want for the players is a good attitude, is a positive attitude, a positive approach, is team spirit, is understanding that some guys they have to sacrifice themselves for the good of others", the United boss said of the Saints and Palace matches.
Elsewhere, Antonio Valencia and Daley Blind were also not included on the trip south, meaning Axel Tuanzebe and Matteo Darmian are on standby for potential starts, with left-back Demi Mitchell another possible option.
Manchester United youngster Marcus Rashford is loving life under Jose Mourinho and is grateful to have been given the chance to shine this campaign.
"A final is a final and we have to go to the final with everything like Ajax does because they have finished the season and they do not have any more football to play until the final".
"I think it is fair that Sergio is going to play in the final and David accepts (that)".
United will be without Zlatan Ibrahimovic, Marcos Rojo, Ashley Young, Luke Shaw and Tim Fosu-Mensah for the Europa League final through injury, while Eric Bailly is suspended following his moment of madness yesterday morning.