Chelsea fullback Marc Cucurella says they must stay focused facing Sheffield United.
Chelsea meet the Blades on the back of victory over Manchester United.
Cucurella told chelseafc.com: "We need to be more stable.
"We need to win every week and we have an important game at Sheffield United that we must win. Otherwise, the three points [against Manchester United] were for nothing. So we need to keep building.
"A lot of games we have played better than the result shows, but this is football. We need to reduce these small mistakes to become a better team. We are young but we fight until the end and believe in our quality."
Cucurella has started Chelsea's last four matches and added: "It's not been an easy season because I was injured for a long period.
"I had to do my best, work hard every day, and now I've had the possibility to play. I feel very good and we need to continue in this way and win the games, that is most important."