"But people don't change overnight. People sometimes face challenges they are not immediately ready for and sometimes you don't even know a challenge will come up.
The British government this week postponed plans to allow a limited number of fans back into stadiums from October after a second wave of COVID-19 infections.
Klopp said of Ferguson: "I know it's not 100 percent appropriate as a Liverpool manager but I admire him. I remember he was the first British manager I met.