Flanagan will spend this season on loan at Burnley, but won't be able to play this weekend.
Liverpool's Jon Flanagan
The 23-year-old returned from a lengthy spell on the sidelines with a knee injury last season but is behind Nathaniel Clyne in the pecking order at Anfield, and Klopp said the move to send him to the Clarets made sense.
Liverpool manager Juergen Klopp celebrates with Jon Flanagan
He told reporters at his pre-match press conference, as reported by the Liverpool Echo: "After a long injury he needs the opportunity to play.
"In Flanno’s case we thought it makes absolute sense that he gets the opportunity to play at the highest level with Burnley. It’s all good for all sides."
Flanagan has yet to make his first appearance for Burnley with their manager Sean Dyche keeping him out of the side until he gains some more fitness, and the defender won't be able to make his bow this weekend against the Reds because of the terms of his loan deal.
Burnley manager Sean Dyche
Without European football this season, it would have been very difficult for Flanagan to get the kind of game time he would have needed the season after making tentative steps to getting some first-team action under his belt.
Clyne was pretty reliable for the Reds last season both in terms of performance, and that he played more games than any other first team player for Liverpool last term.
Liverpool will be hoping that a defender they seem to rate quite highly returns having had a good amount of match practice under his belt, while Burnley will be hoping he can help retain their status in the top flight following their promotion from the Championship.
Liverpool's Jonathan Flanagan in action with Tranmere's Darren Stephenson