I think you should not be sure about Chelsea winning the game against Fulham because they are not in the form and their team obviously is under pressure because they spent too much money and they didn't have good results in the team.
Also, Fulham lost the last game they had against Chelsea but now there is not a good atmosphere in this team and there is even a chance for them to lose.
I see it differently from you, Fulham vs Chelsea I will bet on Chelsea winning. Because after waiting for a long time Chelsea never won, they finally managed to win over Brighton in the Carabao Cup. Of course, Chelsea has been eagerly awaiting this victory because in several matches they have always had unfavorable results, so I think this victory over Brighton gives the players confidence to beat Fulham in the next match. Additionally, a win against Fulham is needed to show that Chelsea has immense value and that Chelsea players have the talent to be top four contenders in the EPL League.