Jimmy Floyd Hasselbaink has urged Chelsea to make defensive signings this season if they want to 'compete with the big boys' in the Premier League.
The Blues tightened their grip on one of the top-four positions in the race for Champions League football next season on Tuesday night.
Olivier Giroud got the only goal of the game, heading home a fine Christian Pulisic cross right on the stroke of half-time.
However, at the back this season, Frank Lampard’s side have shipped 49 Premier League goals in total, more than any other club in the top 10.
And it is there where Hasselbaink believes changes will be necessary for his old club to start challenging with the best again.
"If you look at the team Frank has, with what he has got, he’s done brilliant," he told Premier League Productions after Chelsea’s win over Norwich.
"If you analyse them very, very well they are in the top four but they have had 49 goals against them – that is way too much.
"If you want to compete with the big boys that [defensive record] has to get better significantly.
"If you asked him (Lampard), that’s the department that he is really disappointed about. If you see the type of goals that are going in they are easy to defend.
"They’re goals that you should defend if you are in the top four or if you are going for the league, those type of goals you should know how to easily deal with."
Before Hasselbaink added: "I think they have to improve the squad. Last year they couldn’t get new talent in which has helped the younger ones but to make the younger ones better you have to improve the squad with really good players, players who are better [than those that are already there]."
