Nicol told the Daily Mail: "Just work hard and always remember that.
"I think back to one day in training after I'd started playing every week. We were doing doggy runs, back and forth. Short and sharp.
"I'd done this run and as I stopped, Roy (Evans) came up to me and said: “Is that it? Is that all we're getting from you? Let me tell you something, every day here, we're watching everyone. All the time. You can't take days off".
"That was just one run. One run. But they were on it. I got the message. If you work hard every day at a place like Liverpool, with the players they have, then it's impossible for you not to get better.
"It doesn't happen overnight. But it happens. Good coaches, good players and the brains to take it on board. It's not rocket science."