It is still hard to know exactly what Kai Havertz is as a player or what he will become at Stamford Bridge.
The German playmaker who arrived to much fanfare in the summer of 2020 has had sporadic moments of great influence scattered across a number of forgettable performances. Wednesday night proved the latter at the Gtech Community Stadium in a 0-0 draw with Brentford.
Havertz benefitted from Potter's frequent rotation, starting behind Armando Broja, with Mason Mount acting as an inside forward from the left in a 3-4-2-1 formation. This display from the 23-year-old was not too dissimilar from the norm we have seen since his £71m switch from Bayer Leverkusen.