Chelsea conceded their first goal in four Premier League games as Casemiro's stoppage time header earned Manchester United a 1-1 draw at Stamford Bridge on Saturday but Blues manager Graham Potter was more concerned by his side's lack of attacking spark.
Potter remains unbeaten in eight games since taking over from the sacked Thomas Tuchel, but the last two matches - draws against Brentford and now United - have been disappointing.
Both games have highlighted some attacking shortcomings that Potter will be working hard to put right.
Chelsea are unbeaten in the eight games they have played since Graham Potter took over
Chelsea, who were second-best in the opening half, managed only six goal attempts with two on target and until they were gifted a late penalty that Jorginho tucked away they lacked the guile to break down United's rearguard.