Liverpool defender Joel Matip has claimed that he is "never satisfied" with his performances on the pitch.
The Cameroon international has been a regular in the Reds' defence alongside Virgil van Dijk this term, helping his side to five clean sheets from nine top-flight appearances.
Manager Jurgen Klopp recently claimed that he "cannot help" those who "do not see Joel Matip's quality", but the centre-back believes that he still has lots of room for improvement.
Speaking to UEFA, Matip said: "Usually, I'm very critical about my own performances, I'm never really satisfied with myself. If I had to make a list of things I'd improve about myself, we'd be here for a long time.
"So, I'm never really satisfied. But you have to view everything within the right context. I'm far from a perfectionist, but neither am I ever satisfied. I think that's a good way to improve yourself because satisfaction is not, if you look at it that way.
"Of course, you have to be happy with what you're doing. Not everything always works, but you have to keep trying and have the bravery to try things that maybe didn't work before, or where you are not as confident.
"You have to improve and ask yourself what you can do to improve even more. There is nothing about myself where I'd say, 'You are perfect at this, you don't have to work on that anymore.' That's not how I work."
Matip has played every minute of Liverpool's 2021-22 Champions League campaign as they prepare to meet Porto at Anfield on Wednesday night.