Mourinho said later on Tuesday that Sanchez had chosen to join United in the middle of the season so he could compete in the Champions League knockout stages, which he was unable to do at Arsenal who are in the Europa League this term. "Some clubs are in this moment more ready to win it, but when you reach the quarter-finals that is when any team can feel that anything can happen".
Normally the media is allowed in to film the first 15 minutes of training before Champions League ties - meaningless minutes in which the only thing anyone sees is players jogging round the pitch, stretching or knocking the ball back and forth with little real objective - but this time access was granted towards the end of the session.
Sources had told ESPN FC that Pogba had not been selected to face Sevilla, as Mourinho instead opted for a midfield three of Nemanja Matic, 21-year-old McTominay and Ander Herrera, who has missed the last three games with a thigh injury. The full-backs, Mercado and Escudero, will also need to provide width going forward and support their team in attack.
This will be Vincenzo Montella's second game as coach in Champions League.
With five titles to their name, Sevilla are Europa League's most successful side, but los Rojiblancos now plan to leave their mark on the Champions League as well.
Manchester United defender Victor Lindelof reportedly wants to hold talks with manager Jose Mourinho and receive reassurances over his future at the club. "I have read books about his style of coaching", Montella said in praise.
This will be United's first appearance in the last 16 since 2014, while Sevilla were knocked out of the competition by Leicester at this stage last season. Let's hope we've heard the last of them for a while.
The two ex-City players Jesus Navas and Nolito will have extra incentive to down United tonight with the fire of the Manchester rivalry still burning in their bellies.
The other game on Wednesday sees Ukrainian giants Shakhtar Donetsk host Roma, although the game is still not being played in their home city but in Metalist. "Last 16 still looks a long way to go". We will have to play at a very high level to score against a team that concedes very few goals. He gives us a lot.
So, here at the Hard Tackle, we predict a 1-1 draw with the fortunes likely to be decided in the second leg at the Old Trafford next month.