Jürgen Klopp led inquest in Liverpool's Anemic Champions League defeat at Red Star Belgrade when he tried to rediscover the "spark" that has disappeared from his team in recent weeks.
Klopp said that Liverpool lost his mojo in group C reversed on Tuesday and sought answers from their players when they returned to Melwood. Andy Robertson described Liverpool's overall form so efficient but lacked his usual spark, an analysis supported by the team's best start to a Premier League season, but also a race of three wins in nine games in all competitions.
The result in Belgrade was Liverpool's third successive loss in the Champions League, the club's worst run at the highest level of European competition since 1979. A victory in Paris Saint-Germain this month combined with a positive result for Naples at home to Red Star would secure a place in the knockout phase for last season's beaten finalists.
"I think it's one of the periods we need to get through," said Robertson. "Last season, all the habits were with us with four or five goals. It may not be possible for every single game. Sometimes we have dug out results in the Premier League more so this season.
"Maybe it's not been good to watch, but we've been effective. Maybe we do not have a good spark when it comes to not winning four or five-zero in most matches, but if he [Klopp] think we must try to get it back then. We must come together as a team and try to give what we want, try to get the spark and try to win more games. "
Liverpool have suffered defeat in the Champions League and Carabao Cup while retaining an impressive challenge against Manchester City's defense of the Premier League title. Klopp's decision to introduce Daniel Sturridge, Adam Lallana and Joël Matip in the starting line-up to Red Star doubted the incomparable view, but Robertson denies that Liverpool's focus has woken outside of the Premier League.
The defender said, "It's only games we have not appeared in. They are probably the only ones in this season we have for no reason. I do not think it determines what competition it is in."
Klopp regularly conducts analysis with his players the day after a game after reviewing the match himself at least twice, but Wednesday's debrief adopted a more critical air considering the nature and precision of Liverpool's position in the group.
"You do not quickly forget the result," said Robertson. "Gaffer, win or lose, always talk more day after, because that's when he can clean his head and that's where he gets the best out of us."
Liverpool's trip to the Parc des Princes on November 28 has assumed greater importance for both teams after the week's results. Robertson insists Klopp's side will be sure of the victory despite their bad European departure. "It's a tight group and it will go straight to the management," said the left. "We are still convinced that we are coming through but we have to prove it now.
"We think we can win every game, it has always been the case with us. Away from home last season we were very well in the Champions League. This season we found it a bit difficult. Probably we are still playing the best team away and we have to put in a much better achievement than we have done so far. "