Jurgen Klopp has warned his players that the next five weeks could make or break their Liverpool careers as the January transfer window looms large.

The Reds have picked up one Premier League victory - a 3-1 win at Chelsea - since the German replaced Brendan Rodgers at the beginning of October.

Klopp suffered his first defeat before the international break when Crystal Palace won 2-1 at Anfield, and the 48-year-old admits that it may be a busy winter off the field unless he sees an improvement.

"We will have the possibility to change some things in January and in the summer but at this moment we have made no decisions because we don't have to make them yet. The players know this. It is always the same that at one point in the season you have to make a decision about them," he is quoted as saying by The Mirror.

"We are at a time when they can collect positive arguments and say, 'okay, we want to work together'. I don't need to say this to them, they know it. In this moment we have made no decisions so I have time to judge.

"To make a final judgement on them I need more time. I know about the business of course. We have time and we will see what is possible and what is not possible. We will see what's necessary and what's not necessary, that's how we work."

Klopp and co, who sit 10th in the league table, face leaders Manchester City away on Saturday evening.