The Brazilian has switched from No.11 to take on one that the likes of Andy Carroll, Iago Aspas, Rickie Lambert and Christian Benteke failed in
Expected to thrive as the pinnacle of Liverpool's attack next season, Roberto Firmino has opted for the classic striker's jersey number to suit the role.
The Brazilian forward, who operated up front and on both wings last term, has been No.11 since he joined from Hoffenheim in 2015.
But he has switched to No.9 for the 2017-18 campaign, with new signing Mohamed Salah taking on Firmino's old one.