Lovren joined Zenit St. Petersburg in the summer, but a horror run of injuries at Anfield means he is needed more now than ever.
But the Croatian insists he has no regrets about leaving the Reds, with whom he won the Champions League and Premier League.
"No, I do not regret it. My decision in the summer was firm - to leave Liverpool, and I do not look back," he told Sport-Express.
"I got upset last season when I didn't play, but now everything is different. I think Liverpool miss me more than I miss them. Jurgen Klopp knows this, because we talk. He wrote to me recently: 'We miss you'."
Lovren added: "I'll call it work ethic. Klopp challenges the players to work hard.
"This is what I learned at Liverpool. It's not just against Chelsea and Manchester United that you need to give your best. It's necessary to constantly and consistently maintain a high level of football.
"So for me it doesn't matter who Zenit meets - Spartak or Ufa. I give myself one hundred percent anyway. I would like to convey this approach to the younger generation."