So before we get into the reasons, let's just be clear that there are better options than Higuain. I know it doesn't make sense buying a 30 year old striker when the club has young strikers at their disposal.
Higuain is more of a short-term solution. He will soon turn 31 and has 2 or maybe 3 years at max before he starts turning to MLS or China or Japan. So then why would Chelsea buy Higuain only to again invest in another striker after 2 or 3 seasons?
Moreover, I feel that most fans are more concerned about his price tag, which is around €60m. But given the fact that the market is overpriced, there's only so much one can do.
Let us forget the price for a moment and focus on why Chelsea are interested in the striker.
#3 Ideal for the Premier League
Given the frustrating form of Alvaro Morata, and the fact Michy Batshuyi is yet to blossom into a complete striker, Higuain is an upgrade to the current options Chelsea have at their disposal.
Not to forget Giroud who is good in the air, physically strong, holds up play, but lacks finishing ability. That's where the Argentine striker will make the difference when on the pitch.
The 30 year old has played top level football for years and knows where the back of the net is. Last season, Chelsea's top scorer was Eden Hazard with 17 league goals in all competitions followed by Morata's 15 goals. Michy scored 10 and Giroud after making a switch from Arsenal to Chelsea in the January transfer window scored 5 goals.
That clearly shows that the Blues lack a player who is able to score goals. Someone like Diego Costa. Ever since he left, Chelsea has not been able to replace him. Morata started well but injury issues pulled him back.
You cannot compete for the Premier League and other competitions without a goal scoring striker. Simple as!
#2 Goal scoring machine
Continuing from my previous point, Higuain is a goal-scoring machine. Pipita has scored 76 goals in the last 3 seasons. Now that's something the club lacked last season, and thus eventually lost out on a Champions League spot.
If Chelsea want to avoid that situation again, they need a striker who can score goals and tons of them at that. Morata started off well, but then his injury forced him to hold back. Even after that, he went down habitually in the box more often than not.
Higuain on the other hand has the physical build to fight off centre-backs and score. After all, that is what you expect from a forward. EPL demands physicality and Higuain certainly has the body for it.
#1 Sarri's choice
Sarri played a huge part in Higuain's life. Sarri made Higuain what he is today while playing for Napoli before he moved to Juventus for a then record fee of €90m.
Higuain and Sarri know each other well from their Napoli days and working together again would be no problem for either of them. Just as Sarri got Jorginho to Chelsea, having Higuain as well would help a lot.
Remember Higuain is Sarri's choice, also note how we have moaned about the club not backing the choices of managers past. So have a little faith in Sarri, I am sure good things will happen.
Again, I do not feel Higuain is the best choice for Chelsea but since Sarri prefers him, lets go with it. Yes Morata and Michy should be given chances. Yes spending €60m on a 30 year old striker does not make sense. Yes there are other options in the market.
We can argue back and forth all we want, but if Sarri prefers Higuain and the club is willing to back him up, we should go with it and be positive.