Flanagan has been sidelined since the end of the 2013-14 season through a long-term knee injury.
The 22-year-old says he is 'getting closer' on his page as he appears to be waiting for further treatment in his efforts to return to full fitness.
Flanagan has not played a competitive game since the end of the 2013/14 season - meaning he missed the entire 2014/15 campaign.
He appeared during last summer's pre-season schedule before his injury flared up and it looked as though he was going to make a return to action in the latter stages of the Premier League season having participated in a charity match at the end of March.
However, he then suffered another setback as the decision was taken for him to have surgery on the problem, which is, according to the Independent, set to keep him out until at least the turn of the year.
He faces a hard task if he is to get back into the first-team, given the signings of defenders Nathaniel Clyne and Joe Gomez this summer, along with Andre Wisdom returning to the club after a loan spell at West Bromwich Albion.
So, Flanagan has a job on his hands, but his ability to play on both flanks should mean he will have an opportunity to impress, but Gomez has acquitted himself well in both full-back positions as well this summer. He looks as if he could be a direct rival for a place in the side, especially as Brendan Rodgers has said that Gomez will not be leaving on loan following his arrival from Charlton Athletic.
If the Flanagan can get himself in good shape for when he is due to return from injury, then it will be a massive boost for Rodgers to have another defensive option when injuries have inevitably taken effect.