We have to wake up for the next game and definitely not play like we did.
But Manchester City delivered yet another reminder that it is the team to beat with their 6-1 demoltion of Huddersfield based around a hat trick by Sergio Aguero.
Mourinho's unhappiness with a lack of new signings has been clear for some weeks. Ed Woodward can then sit there as executive vice-chairman and make sure the commercial side and the footballing side deliver profit on and off the pitch.
United were increasingly ragged, Martial booked for a foul on Knockaert after they had given the ball away near their own area, and Jose Mourinho made a double change at the break, bringing on Marcus Rashford for Juan Mata and Jesse Lingard for Andreas Pereira.
United's players did not seem to believe in the cause against Brighton.
"Last season when I was critical of my team and was debating openly of the performances I was criticised for being too open about my players". The Brazilian midfielder was at his marauding best at times and will be looking to continue his solid start for the Red Devils.
Jose Mourinho despondent after Manchester United’s loss to Brighton in the Premier League
Mourinho wanted a central defender in the close season and on the first half evidence at Brighton, it was clear why, yet he also sanctioned the £30 million (Dh140.4m) signings of Bailly and Lindelof.
Bailly's lunge saw referee Kevin Friend point immediately to the penalty spot and Gross, who scored the victor which kept his side up when the teams met in May, struck the ball down the middle of the net.
Fans were quick to question the Chile international's timing as the tweets came out just a day after the club's surprise Premier League loss at Brighton. Only two players have netted more goals exclusively at home in the competition's history - Georginio Wijnaldum (18) and Clive Wilson (9).
If the Chilean superstar misses that game then he could make his return for the trip to Burnley on September 2nd before the Premier League breaks-up for the worldwide break.
United could lose further ground on rivals Manchester City, who have won their opening two league matches of the season, with a tough match at home to Tottenham next Monday. They have been bouncing from one strategy to another for the last five or six years.
He was left frustrated by United's performance on the south coast, which followed a win over Leicester last week and an encouraging week of training.
Newcastle, Cardiff draw 0-0
The three points picked up by Fulham that day helped them secure safety, and Warnock's side were relegated to the second tier. The Magpies finished the game with 10 men after half-time substitute Isaac Hayden was dismissed in the in the 66th minute.