Liverpool boss Jurgen Klopp details how he woke up Sir Alex Ferguson at 4am

Klopp woke Sir Alex up after winning the Premier League

Jurgen Klopp guided Liverpool to Premier League glory last season. 

The Reds actually ran away with the title, finishing a ridiculous 18 points clear of closest challengers Manchester City. 

When Jordan Henderson lifted the trophy high above his head back in July, it ended 30 years of hurt on Merseyside. 

This was Liverpool's first-ever Premier League title. 

For three decades, they had to stand and watch rivals Manchester United find unmatched success in the competition. 

A lot of that success came under Sir Alex Ferguson. The Scottish manager - renowned as the greatest of all time - led the club to 13 top

His time in the dugout ended a long time ago and in his absence, Klopp has put Liverpool back on their perch. 

Klopp rang Sir Alex after winning the PL

And one of the first people the German spoke to after winning the league earlier this summer was Sir Alex himself... at 4am in the morning. 

The legendary coach sent Klopp a congratulatory message after securing the title, but by the time Liverpool boss read it and replied, it was the middle of the night. 

"The problem was that I came back late in my room that night and I couldn't sleep immediately so I went through the messages I got and one of them was from Alex Ferguson," he said, per The Independent

Klopp sent Sir Alex a text late

"I just replied in a very polite way I think. It was about 3:30am-4am and I didn't expect him to have his phone next to his bed. I didn't want to wake him up. If that happened then sorry Alex!" 

Brilliant. Despite receiving a congratulatory message, Klopp admitted that he doesn't keep in regular contact with Sir Alex. 

"Since then we have not been in contact. He is still the former Man United manager and I don't think he wants to talk to me too much about the success of Liverpool.

Sir Alex wasn't impressed by the call

"He respects it but it's not his favourite thing to watch on television!" 

We've got to wonder if Sir Alex would send another message to Klopp if Liverpool secure back-to-back Premier League titles this season? 

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