Since arriving from Southampton in the summer of 2014, Lovren has been extremely inconsistent and his form has prompted plenty of questions over his ability to play at the very top level.
He hasn’t featured much this season, but the long-term injury to Mamadou Sakho means he will come in alongside Martin Skrtel and have the opportunity to prove the doubters wrong.
Carragher feels that it’s now or never for Lovren, alluding the fact he may not get another chance like it.
"It's time we saw the Lovren from Southampton and he's never fully convinced when he's had that chance," Carragher was quoted as saying by the Daily Star. "The manager started him early on in the season and I thought he was outstanding against Arsenal.
"But then in the following game, we played at home to West Ham and lost 3-0 and he was culpable for a goal.
"That can happen at times, but on the back of playing so well, to then go back to square one with that performance, put him in a bad light in the supporters' eyes. It will be another chance for him but sooner or later, he needs to take them."
The Croatia international evidently has the ability to be a commanding centre-back, but the pressure at Liverpool to perform is different than at Southampton and that could be a key factor.
The 26-year-old has made five Premier League starts this season, but not one under Jurgen Klopp. To stay in the manager’s plans, he must start showing the German his best form.
However, his prospective first league start for Liverpool since early September couldn’t be more difficult as the Merseyside outfit take the short trip to face Manchester City at the Etihad Stadium.
To get anything from the game, the visitors must remain concentrated and defend superbly throughout.