Higuain was far from the same player, though, with fitness issues and a general lack of confidence in front of goal hampering his forgettable five-month spell in west London.
Prior to his arrival, former AC Milan striker Alexandre Pato was a surprise signing in January 2016 under interim coach Guus Hiddink, only for the Brazilian to disappear from the teamsheet with one goal in two appearances.
It is fair to say that, unlike the aforementioned trio Saul, Higuain and Pato, Felix, at 23, still has his whole career ahead of him and would not be considered past his best.
But there is a curious approach taken with loan signings at Stamford Bridge whereby the temporary nature of their time with the club is often reflected in their game time as a rotational option, leaving many to wonder why they were signed in the first place.