About halfway through last season, Andy Townsend was asked about Chelsea's goalscoring problems during an interview with talkSPORT and confessed that he didn't "quite get" Kai Havertz. It was a wholly understandable admission. The Germany international is one of the European game's most curious players.
We're talking about a 24-year-old who has already scored winning goals in the finals of both the Champions League and the Club World Cup - and yet is renowned for his poor finishing and lack of a fixed position. Nobody seems very sure of what kind of player Havertz, or whether Chelsea's £75 million ($96m) signing from Bayer Leverkusen is even any good.
And the debate over the attacker's true value has only intensified in recent days, after it emerged that Arsenal are about to commit to spending up to £65m ($83m) to sign him.