Flanagan is currently working his way back from a serious knee injury that has required surgery three times, and the Liverpool full-back didn't play a single minute of last season under Brendan Rodgers.
Liverpool-born Flanagan was part of the Reds side that came agonisingly close to ending their 24-year wait for a league title in 2014, but the defender's fortunes have plummeted since he established himself in the first team.
During that run in 2014, Flanagan drew plaudits from Brazil legend Cafu, who was at Anfield in April of that year to watch Rodgers' side hammer Tottenham Hotspur 4-0, and the ex-AC Milan full-back was fulsome in his praise of the academy graduate after the game.
Cafu has once again heaped praise on Flanagan in this month's FourFourTwo, and despite the Liverpool's man struggles to regain his fitness, the South American believes that he still has potential to become one of the planet's elite right-backs.
“I paid him a visit not long ago,” Cafu said. “We had lunch and took some pictures together. He is very fit and has everything required to be one of the best full-backs in the world.
“The English players that I like the most are those from my generation. I am a big fan of Frank Lampard – his movement is so elegant. Steven Gerrard is also a great example of character, for me.”
“It would have been great to play in England. I would have loved to play for Liverpool, Manchester United or Chelsea.”
Flanagan was ruled out for around nine months back in April after an irregularity on a scan showed that surgery was needed, according to The Telegraph, and the 22-year-old could return to the fold in the New Year should his rehabilitation go to schedule.