But the German revealed he and his players pulled together to help them through the crisis.
The Reds were just two wins away from ending the club’s 30-year wait to be crowned league champions when the UK went into lockdown.
Klopp, 53, and other football stars have united to talk about mental health as part of Prince William’s Heads Up campaign.
He described football being postponed due to the pandemic, before Liverpool finally won the league, as “a setback from all of our dreams”. Klopp added: “But it was a setback for all of us, and we could calm each other down.
“It helps if you don’t feel all the burden on your own shoulders. I think there is no problem big enough or small enough that you cannot talk about it.”
Liverpool defender Andy Robertson also revealed he struggled to share his feelings at the beginning of his career.
The Scottish defender was released by Celtic aged 15 before navigating a tough route to the top via St Mirren, Dundee United and Hull City.
But the 26-year-old told how he changed his approach after becoming a dad.
He said: “I think since we’ve had kids I’ve started to open up more. I used to block everything up. Mentally, it has been easier. I wish I had done it earlier.”
Manchester United star Jesse Lingard told how he looked after his younger siblings when their mum suffered depression.
In a film on the Heads Together YouTube channel, the 27-year-old told presenter Maya Jama: “You just get to that point where you’re like, I’ve got to actually say something. I spoke to my family. It felt so much better.”
Other players, including Manchester City ’s Phil Foden, also spoke of their struggles.
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