Roberto Firmino has never been fond of interviews, but he's just released a book about his eight-year stay at Anfield entitled 'Si Senor: My Liverpool Years'. The memoir sheds plenty of light on how he quickly went from an unwanted misfit during the final, dark days of Brendan Rodgers' reign to a key component in Jurgen Klopp's 'champions of everything', an immensely popular protagonist during a remarkable era of success for the Reds.
One wonders, though, if there will be a future follow-up on Firmino's spell in Saudi Arabia, because while it might not prove the "wonderful story" that the wrote at Liverpool, it would certainly make for a riveting read given mystery presently surrounds his sudden and dramatic dip in form at Al-Ahli.
Firmino was undeniably one of the Pro League's most high-profile summer signings - but also widely regarded as one of its most sensible. He may have been approaching 32, but this was not a striker who had ever relied on pace to prise open defences. He's always been as clever as they come.
Furthermore, Firmino has also long been considered the consummate professional, championed for his work ethic. The common consensus was that he still had enough left in the tank to propel his newly-promoted side towards the top of the table.
However, while Al-Ahli are going reasonably well, currently sitting fourth in the standings, Firmino looks gassed, with years of relentless pressing having seemingly taken their toll on a forward that was renowned as much for his industry as his ingenuity.