The Brazil international was absent once again on Saturday afternoon as the Reds edged past Crystal Palace 1-0 at Anfield, having apparently picked up a minor back injury earlier this month.
Asked for a further comment on the 25-year-old following the win over Palace, Klopp told Sky Sports News: "At the moment, as you can imagine, it's not too easy for anybody, but we have to be concentrated on the job on the pitch, and I really think the boys did brilliant.
"The situation is like it is, and it has not changed, that's all I know. When there is no other decision possible - on the August 31 - then we have to think about everything new. I don't think that it makes sense to think too much ahead, what can happen and when."
Coutinho, whose most recent appearance for Liverpool came in the 3-0 friendly win over Hertha Berlin on July 29, scored 13 goals and set up a further seven in the Premier League last season.