The 30 goals conceded equaled the club's record achieved in the 1976-77 season.
With 54 goals conceded, this was Chelsea's best defence in the top flight, a record broken next season as well.
They lost all six group stage matches, setting new records for worst goal difference (-19) and most goals conceded (22).
The team scored 30 goals in the first 9 matches with no goals conceded.
Most goals conceded by a single goalkeeper in a season:
And while goals for stood at 87 - almost double the previous season's total, goals conceded went up by only five, to 63.
Rossi played 32 games of them, conceded 39 goals, nearly a double compared to the last season.
The 16 goals conceded all season was another new record.
The 69 goals conceded tally was higher than that of all but the bottom two clubs.
No goal conceded but they have to improve dramatically in the coming weeks.