Roy Keane has claimed Manchester United will look back on their recent performances with regret, having lost ground in their pursuit of the Premier League title.
United were cast three points adrift of table-toppers Manchester City following their stalemate with Arsenal at the Emirates Stadium on Saturday night.
It capped a disappointing week for Ole Gunnar Solskjaer's side after they were beaten 2-1 by Sheffield United at Old Trafford on Wednesday.
Arsenal were without three key men - Bukayo Saka, Pierre-Emerick Aubameyang and Kieran Tierney - for the fixture, and Keane, who won seven Premier League titles with United, believes another draw for United highlights their weaknesses under Solskjaer.
He told Sky Sports: "This Arsenal team are eighth in the league and they were missing three of their best players.
"Man Utd and Ole afterwards are going, 'ah, we take the draw'. Too many draws when a team is there for the taking doesn't win you the big prizes.
"At the end of the season, when you look back, those four or five points we lost in those three or four days: huge.
"It really takes its toll at the end of the season when you reflect. At the moment you might try to pretend it's not that important but it is vitally important - especially when they're there for the taking."
The former United captain also accused his old club of being frightened by the challenge of winning the Premier League.
He added: "I'm scratching my head with United. The worry for me is that they almost lacked the belief that they could go and win the game.
"You are looking at Arsenal, who are missing a few players, and the game was there for the taking.
"United were getting the plaudits and they were sneaking up the table. They got in the habit of winning football matches, even if they weren't playing great.
"But all of a sudden, the last three or four weeks, when they've got to the top, and people are saying 'can you win the league? Can you compete with Man City?'.
"It looks as if the players have got almost frightened of the challenge, 'I don't think we're ready for that yet'."
