Roy Keane accused Fred of "cheating" in the Manchester derby and United manager Ole Gunnar Solskjaer responded to his former team-mate.
Bernd Leno seemed to be at fault for two of the three goals conceded by Arsenal at Wolves, but Unai Emery would not blame the goalkeeper.
Leroy Sane has not been first choice for Pep Guardiola of late but he produced a game-changing turn from the bench in the Manchester derby.
The gulf between the two Manchester clubs was there for all to see at Old Trafford and Ole Gunnar Solskjaer had no complaints.
Fred's poor form for Manchester United continued against Manchester City, much to the anger of club great Roy Keane.
Manchester City beat rivals Manchester United 2-0 at Old Trafford to go back in front of Liverpool at the top of the Premier League.
Goals from Bernardo Silva and Leroy Sane condemned Manchester United to defeat in the derby, with Marcus Rashford critical of his side.
Wolves cruised past Arsenal but Unai Emery believes his side still has enough quality to claim a Champions League qualification spot.
No manager had ever won three consecutive Premier League matches at Old Trafford, with Manchester City's Pep Guardiola breaking new ground.
Manchester City are a point ahead of Liverpool in the Premier League after Bernardo Silva and Leroy Sane downed Manchester United.
Liverpool great Robbie Fowler said it was hard to see Manchester United turning their form around against rivals City.
Newcastle can almost certainly look forward to another Premier League season after beating a Southampton side who still have work to do.
Manchester United were humiliated by Everton on Sunday and Paul Pogba has demanded a response in a passionate rallying cry.
Manchester United were embarrassed by a rampant Everton at Goodison Park as their top-four chances were dealt a significant blow.
Ole Gunnar Solskjaer believes the Manchester derby provides the perfect opportunity for Manchester United to rediscover their form.
Manchester City have the edge in recent meetings with Manchester United, but can Ole Gunnar Solskjaer turn it round for the Red Devils?
Ralph Hasenhuttl does not think Shane Long's goal after seven seconds will be beaten as the Southampton forward revelled in the record.
Ole Gunnar Solskjaer fears there is no "quick fix" for Manchester United in the transfer market, and has questioned some players' standards.