Havertz joined a disfunctional Chelsea team that just replaced Sarri with Lampard. When they finally had the good sense to replace Lampard with Tuchel so they can actually win something, they shit themselves up by firing Tuchel and replacing him with poor Potter. They soon regretted and turned to Lampard II: Electric Boogaloo. This was just in like 2 or 3 years. Havertz saw some shit. He needs psychotherapy