Manchester City, England - Football fans will not forget the date of October 6, 2019, and will be remembered - one day after a setback - after losing the city's poles, City and United in the eighth round of the Premier League.
The start was with Man City, who suffered a shock 2-0 defeat by Wolverhampton Wanderers - the Premier League's second defeat of the season to five wins and one draw.
They are eight points adrift of leaders and full-time leaders Liverpool with 24 points.
Coach Pep Guardiola said: "We were not at our level and the previous game was better. The distance is far and Liverpool have not wasted any points. It is time to make up. The results will determine the situation but we are in October and there is a long way to go."
It is the longest distance between the leaders and runners-up, the biggest ever in the Premier League's history, and the worst start for the Celestial team since 2013-2014 under Manuel Pellegrini, who won the championship.
Man City, who have become the second team in the Premier League history to win the title for the second season after Chelsea, aims to be the second team to win the Premier League title in three consecutive seasons after their neighbor United, which did between 2007 and 2009.
In contrast, the former leader of the English football and the neighbor of the city is going from bad to worse. Leaders "Lever" are two points ahead of the relegation zone.
Shockingly, he has not won 11 games, the worst start in three decades since September 1989, and has won just two of his last 13 Premier League games.
He also received eight consecutive defeats away from home, and the last time he won away from Old Trafford was on February 27 against Crisal Palace 2-1.
Red Devils coach Ole Gunnar Solskjaer made no secret of his pessimism after a 1-0 defeat at home to Newcastle and said his side faced a "very difficult task" to finish the season in the top six.
United held the ball for long periods in Sunday's game but were without teeth in front of goal and striker Marcus Rashford rarely made it through.
United looked unresolved in the absence of Anthony Martial, Paul Pogba and Jesse Lingard in front of a defense that met five goals last week from Leicester City.
While noting the absences, the Norwegian coach also said there were no quick fixes for United's suffering, which dates back to the final stages of last season.
"I can't set a timeframe but we will eventually get there," he said. "We have a very difficult task ahead of finishing the season in the top six, not to mention the golden box."
Solskjaer is the fourth permanent coach to take charge after Alex Ferguson's retirement in 2013. Twenty-times England's chances under coach David Moyes, Louis van Gaal and Jose Mourinho have varied despite generous spending on players.
Similarly, Spanish goalkeeper David de Gea spun, saying it was the worst period at the club since he joined in 2011.
Asked what the United are lacking, De Gea said: "Everything. There are many things to improve. We just have to keep trying, fighting and developing every day. It's a difficult moment for all of us."
United's next league game will be at home to Liverpool, who have a perfect record after eight games and are eight points clear of the closest.
Former Manchester United defender Gary Neville blamed the board for the team's suffering, saying Solskjaer needed time and money to get United back on track.
"The board is responsible for all of this, from sub-contracting to poor coach selection. If the board changes direction every two years and invests 250 million pounds ($ 308 million) with each coach, you face big problems."
The club signed central defender Harry McGuire, right-back Aaron Wan-Bisaka and winger Daniel James before the start of the season, but Neville said the team needed to sign "five or six outstanding players".