Did Chelsea only pay for Morata's head??

The game between Chelsea and Arsenal yesterday was tense as both sides struggle to keep up with consistency.
This tensed game ended a draw, a game that saw Chelsea's top scorer Morata miss several clear cut chances that should have sealed victory for the blues, but these chances were lavishly squandered leaving fans to ask if Chelsea paid just for his head and not his legs.
Performances have shown the kind of aerial threat Alvaro Morata is, he needs to however prove his worth by taking and finishing off goals with his legs more often..Except the rumors are true and Chelsea only paid for his head...