Romelu Lukaku's £97.5million club-record return to Chelsea has been nothing short of a rollercoaster ride, in which no one knows when the next twist is coming.
He appeared set to lead Chelsea's charge for the Premier League title after arriving from Inter Milan, scoring three goals in as many top-flight games and bullying an Arsenal defence short on confidence.
However, after four goalless Premier League games came an ankle sprain that kept him out of six fixtures across all competitions, before coronavirus struck soon after.
But few could have envisaged him confessing to being unhappy under Thomas Tuchel and flirting with his former club in a bombshell interview in Italy last month.