The team hasn't lost in its last six games, winning four and drawing two in all competitions.
"In the past decade, they were involved with (Roberto) Mancini and Manuel and myself, with all the staff and all the players, we have created Manchester City".
Nemanja Matic, Phil Jones, Antonio Valencia, Anthony Martial and Matteo Darmian are also out of the game at Selhurst Park, while Marcus Rashford faces a fitness test on the ankle injury he sustained in the opening minutes of Sunday's game when he was tackled by Jordan Henderson.
Keita completed a big-money move to Anfield following an agreement between Liverpool and RB Leipzig in the summer of 2017, which saw him reunite with Mane.
"And I think we're beginning to see that, certainly from last year and now this year with Liverpool sat top of the league". United need a natural-born scorer and, if he returns to fitness quickly, Greenwood has the ideal chance with others unavailable.
Solskjaer's men are back in action at Palace on Wednesday and it appears that game is going to come too soon for several of his stars. "He could be ready again after Everton", said Klopp. "If Manchester United had scored it would have been incredible".More news: Trump delays tariff increase as talks progress
"They're ready, the kids, it's hard when if you're a defender if you're 16 or 17 but as an attacker coming on but as an attacker you go out there and express yourself, there's your chance, they can win the game not lose it".
But ex-United winger Willie Morgan believes the Norwegian will need to do plenty of work in the summer revamping the group of players at Old Trafford - if he gets the job permanently.
"It's not like we've been really bogged down with too many games". "Throughout the summer we kept in touch and I remember when he was in NY he was sending me videos of him running on the treadmill". The boss has already given hints that youngsters Scott McTominay and Andreas Pereira will be trusted at the centre of the pitch, but it goes without saying that the team will be entirely dependent on Paul Pogba to get three points from this fixture.
"Because it's Bobby, I would say yes there is a chance even for Watford, but I don't know if I would use that chance because we played Sunday and then Wednesday immediately". You look at Juan [Sebastian Veron] - he is one of the best players that I played with - and it took him time to settle.
"I'm sure Fred will, when given the chance and a run in the team, grab the opportunity".