I also say it was because of the red card, but sometimes that can be an excuse , however of all the PL teams I like the way Newcastle has performed, this team has good Potential, I think they can be in the top 4 of the standings if they want to, what they have to do is not Lower their level, they Can't get upset because they lost, they were playing against a Liverpool , that is, the defending Champions , so it's not just any old thing.
I'm not one to wish bad on a manager but then, I don't know why I still see Newcastle United Manager Eddie Howe getting sacked. He seems like the next name to be shown the exit. Graham Potter seems to be hot sitted as well. He has to do all he can to win the game against Tottenham Hotspur when they return from the International duties. Jose Mourinho is the perfect replacement I think would be suitable if it happens.