Manchester United captain Harry Maguire insists the club's defence isn't strong enough when it comes to Champions League qualification.
United failed to move to the third following a 2-2 draw with Southampton in a Premier League match held at Old Trafford. The Red Devils conceded a 96th-minute equalizer from a corner to drop two points and miss out on the chance to leapfrog Chelsea and Leicester into third in the table.
Maguire admits United have to tighten up at the back and stop conceding soft goals if they are to clinch a top four finish.
"We've been really good on set-plays lately. Defending set-plays is something we've improved on during this unbeaten run," he said.
"At the start of the season, we had a terrible record conceding set-play after set-play. But we've been really good at them lately. The guy can't get a header in at our front post when we've got four men around it. We'll have a look at it and we'll learn from it."
"We're disappointed. We got control of the game and we had numerous chances to kill the game off. We weren't at our best. We did enough to win the game and a set-play has killed us in the end. We gave them a soft goal. We weren't good enough on the ball. We gave the ball away far too much as a team, everyone in the team.
"We have to dust ourselves down. We have some big games coming up, where we have to go for the three points."
Despite the setback, United remain unbeaten in 18 games.