• Moyes believes United now need to win 'an awful lot of games'
• Roberto Martínez 'couldn't be prouder' of his Everton team
• Match report: Manchester United 0-1 Everton
• Pictures: the best images from Wednesday night's matches
David Moyes, describing himself as "sore" and "disappointed", admitted Manchester United had left themselves almost no room for error after dropping to ninth in the Premier League, 12 points from the top.
The 1-0 defeat at home to Everton means the champions have taken only two points from their past three games and Moyes believes they will have to go on a long winning run after Christmas to stand any chance of catching the leaders, Arsenal.
Moyes insisted he was not concerned about the abusive chants he suffered from Everton's fans but his mood could be gauged by the fact his post-match press conference lasted barely two minutes. His team, he said, had not "reached the standards we wanted tonight" and there was an admission that results had to improve. "We will need to play some great football and win an awful lot of games in the run-in if we are going to be in there and around it at the end of the season."
To the question of whether he thought United were capable of recovering the lost ground, he replied: "I've got nothing to suggest anything else."
Bryan Oviedo's goal leaves Everton in fifth place, with only one defeat since Roberto Martínez filled the void left by Moyes's switch to Old Trafford.
"I couldn't be prouder," Martínez said. "The performance isn't actually the best this season. We've played a lot better but we had a real mentality when we had to dig in. We never felt inferior. We kept doing what we're good at and we created many open chances. We've got a fantastic blend of senior players with real experience and arrogant young players with incredible talent and strength in every position."
United had not lost in the league since the final weekend in September, when they went down 2-1 at home to West Brom. "It doesn't hurt more [being Everton]," Moyes said. "I know they are a very good team with very good players but, as you would imagine, it is a sore one when it is your old team. I didn't really think we got on top of the game all night. It's disappointing but we move on to the next game now."