Coutinho has been a scourge of City in recent seasons, scoring winners at Anfield in 2014 and '15, and being the driving force behind Liverpool's thrilling 4-1 win over City at Etihad Stadium in November 2015.
"They've got the money but everybody knows that so I'm not sure they're in a rush to get anybody as has been reported". And as Liverpool fans know all too well: when one of the big Spanish clubs want your star player, sooner or later, they always seem to get their way.
Zinedine Zidane could cause an issue in the move however, as he is keen to keep his playing staff with Los Blancos intact throughout the season.
A vast majority of players, past and present, had paid tributes to the twinkle-toed midfielder on Tuesday and while Firmino was a little late in wishing his former club colleague, his wish was perhaps the most striking of all.
"Liverpool is no longer the same without you my magical brother", Firmino wrote on social media following his friend's departure to the Nou Camp.
The Brazilian playmaker completed a £142m move to Barcelona on Monday, meaning Juergen Klopp's "fab four" up front is now just a three.
"Coutinho scores goals, assists, he can play both inside (down the centre) and outside (on the flanks)".
Oxlade-Chamberlain signed for Liverpool because he felt he needed a change of surroundings, routine and guidance in order to develop into the player it was believed he would become as a 16-year-old.
Shortly after Guardiola said, "The player who has come through La Masia has something different from the rest, it's a plus that only comes from having competed in a Barcelona shirt from the time you were a child".