Grimes, who has given more than 25 years of service to the club, is an extremely popular and recognized figure who works as a doorman at the Reds training ground.
The longtime Reds fan of Dovecot began working under Roy Evans in the 1990s and continued to serve under seven different directors at Gerard Houllier, Rafa Benitez, Roy Hodgson, Kenny Dalglish, Brendan Rodgers and Jurgen Klopp.
He had previously been a shop steward at Anfield on match days.
The 72-year-old was recently told to retire on the advice of doctors who had originally hoped to return to work after suffering a stroke.
And Klopp said goodbye to Grimes and offered him an invitation to take him on a tour of Kirkby’s new training ground, which Liverpool hope to move into next season.
“Hello Kenny, my friend,” Klopp said in a video message. “I heard that the doctor made a decision so that you might think about retirement.
“I can not believe it! You are fit and so important to us, but sometimes in life you have to listen to people who know more about us.
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“I hope I see you more often than not, I can tell you that you are always welcome in Melwood or Kirkby when we start going. I’ll show you Kirkby personally.
“I just hope you can enjoy the time with your missus, and for the moment you are fine. It’s a difficult time but at least the sun is shining and as far as I know you, I know you will use time for good things.
“I can imagine how you will miss it, and we will miss you 100%.
“From the first day I was in Liverpool, you were there. You opened the door – literally! – for me, and I will never forget it.
“You will never walk alone, because we are always with you. I wish you all the best my friend, see you soon. “