Brendan Rodgers, the Reds manager prior to the German, was sacked by the club back in October 2015. Klopp replaced the Northern Irishman immediately.
Firmino, who arrived at Liverpool three months prior to Klopp, has revealed that he was very happy when he found out that the ex-Borussia Dortmund man would be taking the reigns at Anfield.
As quoted by Anfield Watch's Twitter account, Firmino told the club's official website the following: "I told him how happy I was that he’d come here and here I am today, very happy alongside him. His arrival here changed everything. We really clicked and got on great immediately.
"I knew him already from playing against him in Germany. I knew him, he knew me. I grew and developed a lot here thanks to him."
Paul Joyce on contract discussions for Mo Salah, Sadio Mane and Roberto Firmino:
"I wouldn't be surprised if we see negotiations drag on into next season. We saw that with Emre Can and Gini Wijnaldum. But Liverpool always have contingency plans." #awlive [@KENN7OFFICIAL] pic.twitter.com/ykOYTBO1od
Anfield Watch Verdict
Firmino has flourished under Klopp. The forward has scored 96 goals and registered 73 assists in just over 300 appearances for Liverpool under the German.
Firmino has also won five major trophies with the Reds alongside Klopp. Therefore, we can see why the Brazil international is a big fan of the 54-year-old.
However, it turns out that Klopp also loves Firmino.
"He (Firmino) is a very smart player," Klopp said in a news conference back in January, as quoted by Stadium Astro. "His game is about using his team-mates in the way that he can use them.
"It's not just about being able to score goals in this way or that way."
Firmino is contracted until the summer of 2023. As things stand, we have no idea where the Brazil international's long-term future lies.
Firmino is 30 years of age and has become a squad player at Liverpool. He has only made 26 appearances for the Reds this season.
With that being the case, we would not be surprised if Firmino was to leave the club in the near future.