Darren Fletcher believes Manchester United must learn to avoid the lapses in concentration that have marked the start to their season.
The Red Devils have dropped points from winning positions against Fulham and Everton this season, and nearly allowed the same to happen when Liverpool visited Old Traffordlast weekend.
The Merseysiders came back from 2-0 down to 2-2 before Dimitar Berbatov completed a stunning hat-trick to secure victory for United.
Fletcher recognises that such a problem could prove costly in the title race and has called on his team-mates to stay focused at all times.
"There has to be a concern that we nearly threw another lead away," said the Scotland skipper.
"We have conceded sloppy goals through lapses in concentration in a number of games and were fortunate Dimitar pulled out the third goal to win the game.
"But we have to remember we threw away a fantastic lead.
"It is something we have to try and put to rest if we want to progress in the
Premier League."