Manchester United boss David Moyes admits they cannot afford another slip in the title battle this season.
United blew two points in injury-time at Cardiff City yesterday.
Moyes said: "I'm disappointed, we should have won it.
"We were on a pretty good run and that is a blow because we can't keep dropping points when we are winning.
"Similar to the Southampton match, when we had the game under control and conceded from a set-piece. It cost us ultimately. We lost concentration. We also gave away a stupid free-kick which led to the goal.
"I know we could have played better but we should have won it."
